| Index: pkg/compiler/lib/src/tokens/precedence_constants.dart
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| diff --git a/pkg/compiler/lib/src/tokens/precedence_constants.dart b/pkg/compiler/lib/src/tokens/precedence_constants.dart
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| index f2e44f28282800fe4debf1b07dc02866f4734140..08475ec6754be67a8899ba73387212f0956f5875 100644
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| --- a/pkg/compiler/lib/src/tokens/precedence_constants.dart
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| +++ b/pkg/compiler/lib/src/tokens/precedence_constants.dart
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| @@ -4,18 +4,16 @@
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|  
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|  library dart2js.tokens.precedence.constants;
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|  
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| -import 'precedence.dart' show
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| -    PrecedenceInfo;
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| +import 'precedence.dart' show PrecedenceInfo;
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|  import 'token_constants.dart';
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|  
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|  // TODO(ahe): The following are not tokens in Dart.
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|  const PrecedenceInfo BACKPING_INFO =
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| -  const PrecedenceInfo('`', 0, BACKPING_TOKEN);
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| +    const PrecedenceInfo('`', 0, BACKPING_TOKEN);
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|  const PrecedenceInfo BACKSLASH_INFO =
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| -  const PrecedenceInfo('\\', 0, BACKSLASH_TOKEN);
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| +    const PrecedenceInfo('\\', 0, BACKSLASH_TOKEN);
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|  const PrecedenceInfo PERIOD_PERIOD_PERIOD_INFO =
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| -  const PrecedenceInfo('...', 0,
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| -                       PERIOD_PERIOD_PERIOD_TOKEN);
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| +    const PrecedenceInfo('...', 0, PERIOD_PERIOD_PERIOD_TOKEN);
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|  
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|  /**
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|   * The cascade operator has the lowest precedence of any operator
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| @@ -23,219 +21,169 @@ const PrecedenceInfo PERIOD_PERIOD_PERIOD_INFO =
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|   */
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|  const int CASCADE_PRECEDENCE = 2;
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|  const PrecedenceInfo PERIOD_PERIOD_INFO =
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| -  const PrecedenceInfo('..', CASCADE_PRECEDENCE,
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| -                       PERIOD_PERIOD_TOKEN);
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| -
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| -const PrecedenceInfo BANG_INFO =
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| -  const PrecedenceInfo('!', 0, BANG_TOKEN);
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| -const PrecedenceInfo COLON_INFO =
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| -  const PrecedenceInfo(':', 0, COLON_TOKEN);
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| -const PrecedenceInfo INDEX_INFO =
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| -  const PrecedenceInfo('[]', 0, INDEX_TOKEN);
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| +    const PrecedenceInfo('..', CASCADE_PRECEDENCE, PERIOD_PERIOD_TOKEN);
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| +
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| +const PrecedenceInfo BANG_INFO = const PrecedenceInfo('!', 0, BANG_TOKEN);
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| +const PrecedenceInfo COLON_INFO = const PrecedenceInfo(':', 0, COLON_TOKEN);
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| +const PrecedenceInfo INDEX_INFO = const PrecedenceInfo('[]', 0, INDEX_TOKEN);
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|  const PrecedenceInfo MINUS_MINUS_INFO =
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| -  const PrecedenceInfo('--', POSTFIX_PRECEDENCE,
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| -                       MINUS_MINUS_TOKEN);
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| +    const PrecedenceInfo('--', POSTFIX_PRECEDENCE, MINUS_MINUS_TOKEN);
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|  const PrecedenceInfo PLUS_PLUS_INFO =
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| -  const PrecedenceInfo('++', POSTFIX_PRECEDENCE,
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| -                       PLUS_PLUS_TOKEN);
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| -const PrecedenceInfo TILDE_INFO =
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| -  const PrecedenceInfo('~', 0, TILDE_TOKEN);
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| +    const PrecedenceInfo('++', POSTFIX_PRECEDENCE, PLUS_PLUS_TOKEN);
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| +const PrecedenceInfo TILDE_INFO = const PrecedenceInfo('~', 0, TILDE_TOKEN);
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|  
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|  const PrecedenceInfo FUNCTION_INFO =
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| -  const PrecedenceInfo('=>', 0, FUNCTION_TOKEN);
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| -const PrecedenceInfo HASH_INFO =
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| -  const PrecedenceInfo('#', 0, HASH_TOKEN);
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| +    const PrecedenceInfo('=>', 0, FUNCTION_TOKEN);
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| +const PrecedenceInfo HASH_INFO = const PrecedenceInfo('#', 0, HASH_TOKEN);
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|  const PrecedenceInfo INDEX_EQ_INFO =
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| -  const PrecedenceInfo('[]=', 0, INDEX_EQ_TOKEN);
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| +    const PrecedenceInfo('[]=', 0, INDEX_EQ_TOKEN);
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|  const PrecedenceInfo SEMICOLON_INFO =
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| -  const PrecedenceInfo(';', 0, SEMICOLON_TOKEN);
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| -const PrecedenceInfo COMMA_INFO =
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| -  const PrecedenceInfo(',', 0, COMMA_TOKEN);
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| +    const PrecedenceInfo(';', 0, SEMICOLON_TOKEN);
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| +const PrecedenceInfo COMMA_INFO = const PrecedenceInfo(',', 0, COMMA_TOKEN);
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|  
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| -const PrecedenceInfo AT_INFO =
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| -  const PrecedenceInfo('@', 0, AT_TOKEN);
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| +const PrecedenceInfo AT_INFO = const PrecedenceInfo('@', 0, AT_TOKEN);
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|  
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|  // Assignment operators.
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|  const int ASSIGNMENT_PRECEDENCE = 1;
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|  const PrecedenceInfo AMPERSAND_EQ_INFO =
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| -  const PrecedenceInfo('&=',
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| -                       ASSIGNMENT_PRECEDENCE, AMPERSAND_EQ_TOKEN);
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| +    const PrecedenceInfo('&=', ASSIGNMENT_PRECEDENCE, AMPERSAND_EQ_TOKEN);
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|  const PrecedenceInfo BAR_EQ_INFO =
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| -  const PrecedenceInfo('|=',
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| -                       ASSIGNMENT_PRECEDENCE, BAR_EQ_TOKEN);
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| +    const PrecedenceInfo('|=', ASSIGNMENT_PRECEDENCE, BAR_EQ_TOKEN);
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|  const PrecedenceInfo CARET_EQ_INFO =
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| -  const PrecedenceInfo('^=',
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| -                       ASSIGNMENT_PRECEDENCE, CARET_EQ_TOKEN);
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| +    const PrecedenceInfo('^=', ASSIGNMENT_PRECEDENCE, CARET_EQ_TOKEN);
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|  const PrecedenceInfo EQ_INFO =
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| -  const PrecedenceInfo('=',
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| -                       ASSIGNMENT_PRECEDENCE, EQ_TOKEN);
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| +    const PrecedenceInfo('=', ASSIGNMENT_PRECEDENCE, EQ_TOKEN);
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|  const PrecedenceInfo GT_GT_EQ_INFO =
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| -  const PrecedenceInfo('>>=',
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| -                       ASSIGNMENT_PRECEDENCE, GT_GT_EQ_TOKEN);
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| +    const PrecedenceInfo('>>=', ASSIGNMENT_PRECEDENCE, GT_GT_EQ_TOKEN);
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|  const PrecedenceInfo LT_LT_EQ_INFO =
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| -  const PrecedenceInfo('<<=',
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| -                       ASSIGNMENT_PRECEDENCE, LT_LT_EQ_TOKEN);
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| +    const PrecedenceInfo('<<=', ASSIGNMENT_PRECEDENCE, LT_LT_EQ_TOKEN);
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|  const PrecedenceInfo MINUS_EQ_INFO =
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| -  const PrecedenceInfo('-=',
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| -                       ASSIGNMENT_PRECEDENCE, MINUS_EQ_TOKEN);
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| +    const PrecedenceInfo('-=', ASSIGNMENT_PRECEDENCE, MINUS_EQ_TOKEN);
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|  const PrecedenceInfo PERCENT_EQ_INFO =
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| -  const PrecedenceInfo('%=',
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| -                       ASSIGNMENT_PRECEDENCE, PERCENT_EQ_TOKEN);
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| +    const PrecedenceInfo('%=', ASSIGNMENT_PRECEDENCE, PERCENT_EQ_TOKEN);
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|  const PrecedenceInfo PLUS_EQ_INFO =
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| -  const PrecedenceInfo('+=',
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| -                       ASSIGNMENT_PRECEDENCE, PLUS_EQ_TOKEN);
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| +    const PrecedenceInfo('+=', ASSIGNMENT_PRECEDENCE, PLUS_EQ_TOKEN);
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|  const PrecedenceInfo SLASH_EQ_INFO =
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| -  const PrecedenceInfo('/=',
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| -                       ASSIGNMENT_PRECEDENCE, SLASH_EQ_TOKEN);
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| +    const PrecedenceInfo('/=', ASSIGNMENT_PRECEDENCE, SLASH_EQ_TOKEN);
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|  const PrecedenceInfo STAR_EQ_INFO =
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| -  const PrecedenceInfo('*=',
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| -                       ASSIGNMENT_PRECEDENCE, STAR_EQ_TOKEN);
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| +    const PrecedenceInfo('*=', ASSIGNMENT_PRECEDENCE, STAR_EQ_TOKEN);
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|  const PrecedenceInfo TILDE_SLASH_EQ_INFO =
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| -  const PrecedenceInfo('~/=',
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| -                       ASSIGNMENT_PRECEDENCE, TILDE_SLASH_EQ_TOKEN);
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| -const PrecedenceInfo QUESTION_QUESTION_EQ_INFO =
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| -  const PrecedenceInfo('??=',
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| -                       ASSIGNMENT_PRECEDENCE, QUESTION_QUESTION_EQ_TOKEN);
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| +    const PrecedenceInfo('~/=', ASSIGNMENT_PRECEDENCE, TILDE_SLASH_EQ_TOKEN);
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| +const PrecedenceInfo QUESTION_QUESTION_EQ_INFO = const PrecedenceInfo(
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| +    '??=', ASSIGNMENT_PRECEDENCE, QUESTION_QUESTION_EQ_TOKEN);
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|  
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|  const PrecedenceInfo QUESTION_INFO =
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| -  const PrecedenceInfo('?', 3, QUESTION_TOKEN);
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| +    const PrecedenceInfo('?', 3, QUESTION_TOKEN);
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|  
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|  const PrecedenceInfo QUESTION_QUESTION_INFO =
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| -  const PrecedenceInfo('??', 4, QUESTION_QUESTION_TOKEN);
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| +    const PrecedenceInfo('??', 4, QUESTION_QUESTION_TOKEN);
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|  
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|  const PrecedenceInfo BAR_BAR_INFO =
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| -  const PrecedenceInfo('||', 5, BAR_BAR_TOKEN);
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| +    const PrecedenceInfo('||', 5, BAR_BAR_TOKEN);
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|  
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|  const PrecedenceInfo AMPERSAND_AMPERSAND_INFO =
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| -  const PrecedenceInfo('&&', 6, AMPERSAND_AMPERSAND_TOKEN);
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| +    const PrecedenceInfo('&&', 6, AMPERSAND_AMPERSAND_TOKEN);
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|  
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| -const PrecedenceInfo BAR_INFO =
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| -  const PrecedenceInfo('|', 9, BAR_TOKEN);
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| +const PrecedenceInfo BAR_INFO = const PrecedenceInfo('|', 9, BAR_TOKEN);
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|  
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| -const PrecedenceInfo CARET_INFO =
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| -  const PrecedenceInfo('^', 10, CARET_TOKEN);
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| +const PrecedenceInfo CARET_INFO = const PrecedenceInfo('^', 10, CARET_TOKEN);
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|  
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|  const PrecedenceInfo AMPERSAND_INFO =
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| -  const PrecedenceInfo('&', 11, AMPERSAND_TOKEN);
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| +    const PrecedenceInfo('&', 11, AMPERSAND_TOKEN);
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|  
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|  // Equality operators.
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|  const int EQUALITY_PRECEDENCE = 7;
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|  const PrecedenceInfo BANG_EQ_EQ_INFO =
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| -  const PrecedenceInfo('!==',
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| -                       EQUALITY_PRECEDENCE, BANG_EQ_EQ_TOKEN);
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| +    const PrecedenceInfo('!==', EQUALITY_PRECEDENCE, BANG_EQ_EQ_TOKEN);
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|  const PrecedenceInfo BANG_EQ_INFO =
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| -  const PrecedenceInfo('!=',
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| -                       EQUALITY_PRECEDENCE, BANG_EQ_TOKEN);
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| +    const PrecedenceInfo('!=', EQUALITY_PRECEDENCE, BANG_EQ_TOKEN);
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|  const PrecedenceInfo EQ_EQ_EQ_INFO =
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| -  const PrecedenceInfo('===',
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| -                       EQUALITY_PRECEDENCE, EQ_EQ_EQ_TOKEN);
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| +    const PrecedenceInfo('===', EQUALITY_PRECEDENCE, EQ_EQ_EQ_TOKEN);
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|  const PrecedenceInfo EQ_EQ_INFO =
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| -  const PrecedenceInfo('==',
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| -                       EQUALITY_PRECEDENCE, EQ_EQ_TOKEN);
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| +    const PrecedenceInfo('==', EQUALITY_PRECEDENCE, EQ_EQ_TOKEN);
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|  
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|  // Relational operators.
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|  const int RELATIONAL_PRECEDENCE = 8;
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|  const PrecedenceInfo GT_EQ_INFO =
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| -  const PrecedenceInfo('>=',
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| -                       RELATIONAL_PRECEDENCE, GT_EQ_TOKEN);
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| +    const PrecedenceInfo('>=', RELATIONAL_PRECEDENCE, GT_EQ_TOKEN);
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|  const PrecedenceInfo GT_INFO =
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| -  const PrecedenceInfo('>',
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| -                       RELATIONAL_PRECEDENCE, GT_TOKEN);
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| +    const PrecedenceInfo('>', RELATIONAL_PRECEDENCE, GT_TOKEN);
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|  const PrecedenceInfo IS_INFO =
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| -  const PrecedenceInfo('is',
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| -                       RELATIONAL_PRECEDENCE, KEYWORD_TOKEN);
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| +    const PrecedenceInfo('is', RELATIONAL_PRECEDENCE, KEYWORD_TOKEN);
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|  const PrecedenceInfo AS_INFO =
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| -  const PrecedenceInfo('as',
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| -                       RELATIONAL_PRECEDENCE, KEYWORD_TOKEN);
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| +    const PrecedenceInfo('as', RELATIONAL_PRECEDENCE, KEYWORD_TOKEN);
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|  const PrecedenceInfo LT_EQ_INFO =
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| -  const PrecedenceInfo('<=',
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| -                       RELATIONAL_PRECEDENCE, LT_EQ_TOKEN);
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| +    const PrecedenceInfo('<=', RELATIONAL_PRECEDENCE, LT_EQ_TOKEN);
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|  const PrecedenceInfo LT_INFO =
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| -  const PrecedenceInfo('<',
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| -                       RELATIONAL_PRECEDENCE, LT_TOKEN);
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| +    const PrecedenceInfo('<', RELATIONAL_PRECEDENCE, LT_TOKEN);
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|  
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|  // Shift operators.
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| -const PrecedenceInfo GT_GT_INFO =
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| -  const PrecedenceInfo('>>', 12, GT_GT_TOKEN);
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| -const PrecedenceInfo LT_LT_INFO =
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| -  const PrecedenceInfo('<<', 12, LT_LT_TOKEN);
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| +const PrecedenceInfo GT_GT_INFO = const PrecedenceInfo('>>', 12, GT_GT_TOKEN);
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| +const PrecedenceInfo LT_LT_INFO = const PrecedenceInfo('<<', 12, LT_LT_TOKEN);
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|  
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|  // Additive operators.
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| -const PrecedenceInfo MINUS_INFO =
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| -  const PrecedenceInfo('-', 13, MINUS_TOKEN);
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| -const PrecedenceInfo PLUS_INFO =
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| -  const PrecedenceInfo('+', 13, PLUS_TOKEN);
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| +const PrecedenceInfo MINUS_INFO = const PrecedenceInfo('-', 13, MINUS_TOKEN);
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| +const PrecedenceInfo PLUS_INFO = const PrecedenceInfo('+', 13, PLUS_TOKEN);
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|  
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|  // Multiplicative operators.
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|  const PrecedenceInfo PERCENT_INFO =
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| -  const PrecedenceInfo('%', 14, PERCENT_TOKEN);
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| -const PrecedenceInfo SLASH_INFO =
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| -  const PrecedenceInfo('/', 14, SLASH_TOKEN);
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| -const PrecedenceInfo STAR_INFO =
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| -  const PrecedenceInfo('*', 14, STAR_TOKEN);
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| +    const PrecedenceInfo('%', 14, PERCENT_TOKEN);
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| +const PrecedenceInfo SLASH_INFO = const PrecedenceInfo('/', 14, SLASH_TOKEN);
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| +const PrecedenceInfo STAR_INFO = const PrecedenceInfo('*', 14, STAR_TOKEN);
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|  const PrecedenceInfo TILDE_SLASH_INFO =
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| -  const PrecedenceInfo('~/', 14, TILDE_SLASH_TOKEN);
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| +    const PrecedenceInfo('~/', 14, TILDE_SLASH_TOKEN);
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|  
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|  const int POSTFIX_PRECEDENCE = 15;
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|  const PrecedenceInfo PERIOD_INFO =
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| -  const PrecedenceInfo('.', POSTFIX_PRECEDENCE,
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| -                       PERIOD_TOKEN);
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| +    const PrecedenceInfo('.', POSTFIX_PRECEDENCE, PERIOD_TOKEN);
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|  const PrecedenceInfo QUESTION_PERIOD_INFO =
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| -  const PrecedenceInfo('?.', POSTFIX_PRECEDENCE,
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| -                       QUESTION_PERIOD_TOKEN);
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| +    const PrecedenceInfo('?.', POSTFIX_PRECEDENCE, QUESTION_PERIOD_TOKEN);
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|  
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|  const PrecedenceInfo KEYWORD_INFO =
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| -  const PrecedenceInfo('keyword', 0, KEYWORD_TOKEN);
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| +    const PrecedenceInfo('keyword', 0, KEYWORD_TOKEN);
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|  
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| -const PrecedenceInfo EOF_INFO =
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| -  const PrecedenceInfo('EOF', 0, EOF_TOKEN);
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| +const PrecedenceInfo EOF_INFO = const PrecedenceInfo('EOF', 0, EOF_TOKEN);
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|  
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|  const PrecedenceInfo IDENTIFIER_INFO =
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| -  const PrecedenceInfo('identifier', 0, IDENTIFIER_TOKEN);
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| +    const PrecedenceInfo('identifier', 0, IDENTIFIER_TOKEN);
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|  
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|  const PrecedenceInfo BAD_INPUT_INFO =
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| -  const PrecedenceInfo('malformed input', 0,
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| -                       BAD_INPUT_TOKEN);
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| +    const PrecedenceInfo('malformed input', 0, BAD_INPUT_TOKEN);
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|  
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|  const PrecedenceInfo OPEN_PAREN_INFO =
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| -  const PrecedenceInfo('(', POSTFIX_PRECEDENCE,
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| -                       OPEN_PAREN_TOKEN);
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| +    const PrecedenceInfo('(', POSTFIX_PRECEDENCE, OPEN_PAREN_TOKEN);
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|  
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|  const PrecedenceInfo CLOSE_PAREN_INFO =
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| -  const PrecedenceInfo(')', 0, CLOSE_PAREN_TOKEN);
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| +    const PrecedenceInfo(')', 0, CLOSE_PAREN_TOKEN);
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|  
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|  const PrecedenceInfo OPEN_CURLY_BRACKET_INFO =
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| -  const PrecedenceInfo('{', 0, OPEN_CURLY_BRACKET_TOKEN);
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| +    const PrecedenceInfo('{', 0, OPEN_CURLY_BRACKET_TOKEN);
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|  
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|  const PrecedenceInfo CLOSE_CURLY_BRACKET_INFO =
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| -  const PrecedenceInfo('}', 0, CLOSE_CURLY_BRACKET_TOKEN);
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| +    const PrecedenceInfo('}', 0, CLOSE_CURLY_BRACKET_TOKEN);
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|  
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| -const PrecedenceInfo INT_INFO =
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| -  const PrecedenceInfo('int', 0, INT_TOKEN);
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| +const PrecedenceInfo INT_INFO = const PrecedenceInfo('int', 0, INT_TOKEN);
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|  
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|  const PrecedenceInfo STRING_INFO =
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| -  const PrecedenceInfo('string', 0, STRING_TOKEN);
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| +    const PrecedenceInfo('string', 0, STRING_TOKEN);
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|  
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|  const PrecedenceInfo OPEN_SQUARE_BRACKET_INFO =
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| -  const PrecedenceInfo('[', POSTFIX_PRECEDENCE,
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| -                       OPEN_SQUARE_BRACKET_TOKEN);
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| +    const PrecedenceInfo('[', POSTFIX_PRECEDENCE, OPEN_SQUARE_BRACKET_TOKEN);
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|  
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|  const PrecedenceInfo CLOSE_SQUARE_BRACKET_INFO =
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| -  const PrecedenceInfo(']', 0, CLOSE_SQUARE_BRACKET_TOKEN);
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| +    const PrecedenceInfo(']', 0, CLOSE_SQUARE_BRACKET_TOKEN);
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|  
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|  const PrecedenceInfo DOUBLE_INFO =
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| -  const PrecedenceInfo('double', 0, DOUBLE_TOKEN);
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| +    const PrecedenceInfo('double', 0, DOUBLE_TOKEN);
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|  
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|  const PrecedenceInfo STRING_INTERPOLATION_INFO =
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| -  const PrecedenceInfo('\${', 0,
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| -                       STRING_INTERPOLATION_TOKEN);
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| +    const PrecedenceInfo('\${', 0, STRING_INTERPOLATION_TOKEN);
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|  
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|  const PrecedenceInfo STRING_INTERPOLATION_IDENTIFIER_INFO =
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| -  const PrecedenceInfo('\$', 0,
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| -                       STRING_INTERPOLATION_IDENTIFIER_TOKEN);
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| +    const PrecedenceInfo('\$', 0, STRING_INTERPOLATION_IDENTIFIER_TOKEN);
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|  
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|  const PrecedenceInfo HEXADECIMAL_INFO =
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| -  const PrecedenceInfo('hexadecimal', 0, HEXADECIMAL_TOKEN);
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| +    const PrecedenceInfo('hexadecimal', 0, HEXADECIMAL_TOKEN);
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|  
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|  const PrecedenceInfo COMMENT_INFO =
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| -  const PrecedenceInfo('comment', 0, COMMENT_TOKEN);
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| +    const PrecedenceInfo('comment', 0, COMMENT_TOKEN);
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| 
 |