Update all Angular libs (run update_all.sh).

third_party/pkg/angular/lib/core/parser/lexer.dart

 library angular.core.parser.lexer;
 
-import 'package:angular/core/module.dart' show NgInjectableService;
+import 'package:angular/core/annotation_src.dart';
 import 'package:angular/core/parser/characters.dart';
 
-class Token {
-  final int index;
-  final String text;
+part 'tokens.dart';
 
-  var value;
-  // Tokens should have one of these set.
-  String opKey;
-  String key;
-
-  Token(this.index, this.text);
-
-  withOp(op) {
-    this.opKey = op;
-  }
-
-  withGetterSetter(key) {
-    this.key = key;
-  }
-
-  withValue(value) { this.value = value; }
-
-  toString() => "Token($text)";
-}
-
-
-@NgInjectableService()
+@Injectable()
 class Lexer {
   List<Token> call(String text) {
     Scanner scanner = new Scanner(text);
     List<Token> tokens = [];
     Token token = scanner.scanToken();
     while (token != null) {
       tokens.add(token);
       token = scanner.scanToken();
     }
     return tokens;
@@ skipping 23 matching lines @@
     }
 
     // Handle identifiers and numbers.
     if (isIdentifierStart(peek)) return scanIdentifier();
     if (isDigit(peek)) return scanNumber(index);
 
     int start = index;
     switch (peek) {
       case $PERIOD:
         advance();
-        return isDigit(peek) ? scanNumber(start) : new Token(start, '.');
+        return isDigit(peek) ? scanNumber(start) : new CharacterToken(start, $PERIOD);
       case $LPAREN:
       case $RPAREN:
       case $LBRACE:
       case $RBRACE:
       case $LBRACKET:
       case $RBRACKET:
       case $COMMA:
       case $COLON:
       case $SEMICOLON:
-        return scanCharacter(start, new String.fromCharCode(peek));
+        return scanCharacter(start, peek);
       case $SQ:
       case $DQ:
         return scanString();
       case $PLUS:
       case $MINUS:
       case $STAR:
       case $SLASH:
       case $PERCENT:
       case $CARET:
       case $QUESTION:
@@ skipping 12 matching lines @@
       case $NBSP:
         while (isWhitespace(peek)) advance();
         return scanToken();
     }
 
     String character = new String.fromCharCode(peek);
     error('Unexpected character [$character]');
     return null;
   }
 
-  Token scanCharacter(int start, String string) {
-    assert(peek == string.codeUnitAt(0));
+  Token scanCharacter(int start, int code) {
+    assert(peek == code);
     advance();
-    return new Token(start, string);
+    return new CharacterToken(start, code);
   }
 
   Token scanOperator(int start, String string) {
     assert(peek == string.codeUnitAt(0));
     assert(OPERATORS.contains(string));
     advance();
-    return new Token(start, string)..withOp(string);
+    return new OperatorToken(start, string);
   }
 
   Token scanComplexOperator(int start, int code, String one, String two) {
     assert(peek == one.codeUnitAt(0));
     advance();
     String string = one;
     if (peek == code) {
       advance();
       string += two;
     }
     assert(OPERATORS.contains(string));
-    return new Token(start, string)..withOp(string);
+    return new OperatorToken(start, string);
   }
 
   Token scanIdentifier() {
     assert(isIdentifierStart(peek));
     int start = index;
     advance();
     while (isIdentifierPart(peek)) advance();
     String string = input.substring(start, index);
-    Token result = new Token(start, string);
-    // TODO(kasperl): Deal with null, undefined, true, and false in
-    // a cleaner and faster way.
-    if (OPERATORS.contains(string)) {
-      result.withOp(string);
-    } else {
-      result.withGetterSetter(string);
-    }
-    return result;
+    return new IdentifierToken(start, string, KEYWORDS.contains(string));
   }
 
   Token scanNumber(int start) {
     assert(isDigit(peek));
     bool simple = (index == start);
     advance();  // Skip initial digit.
     while (true) {
       if (isDigit(peek)) {
         // Do nothing.
       } else if (peek == $PERIOD) {
         simple = false;
       } else if (isExponentStart(peek)) {
         advance();
         if (isExponentSign(peek)) advance();
         if (!isDigit(peek)) error('Invalid exponent', -1);
         simple = false;
       } else {
         break;
       }
       advance();
     }
     String string = input.substring(start, index);
     num value = simple ? int.parse(string) : double.parse(string);
-    return new Token(start, string)..withValue(value);
+    return new NumberToken(start, value);
   }
 
   Token scanString() {
     assert(peek == $SQ || peek == $DQ);
     int start = index;
     int quote = peek;
     advance();  // Skip initial quote.
 
     StringBuffer buffer;
     int marker = index;
 
     while (peek != quote) {
       if (peek == $BACKSLASH) {
         if (buffer == null) buffer = new StringBuffer();
         buffer.write(input.substring(marker, index));
         advance();
         int unescaped;
         if (peek == $u) {
           // TODO(kasperl): Check bounds? Make sure we have test
           // coverage for this.
           String hex = input.substring(index + 1, index + 5);
           unescaped = int.parse(hex, radix: 16, onError: (ignore) {
             error('Invalid unicode escape [\\u$hex]'); });
-          for (int i = 0; i < 5; i++) advance();
+          for (int i = 0; i < 5; i++) {
+            advance();
+          }
         } else {
           unescaped = unescape(peek);
           advance();
         }
         buffer.writeCharCode(unescaped);
         marker = index;
       } else if (peek == $EOF) {
         error('Unterminated quote');
       } else {
         advance();
       }
     }
 
     String last = input.substring(marker, index);
     advance();  // Skip terminating quote.
     String string = input.substring(start, index);
 
     // Compute the unescaped string value.
     String unescaped = last;
     if (buffer != null) {
       buffer.write(last);
       unescaped = buffer.toString();
     }
-    return new Token(start, string)..withValue(unescaped);
+    return new StringToken(start, string, unescaped);
   }
 
   void advance() {
-    if (++index >= length) peek = $EOF;
-    else peek = input.codeUnitAt(index);
+    peek = ++index >= length ? $EOF : input.codeUnitAt(index);
   }
 
   void error(String message, [int offset = 0]) {
     // TODO(kasperl): Try to get rid of the offset. It is only used to match
     // the error expectations in the lexer tests for numbers with exponents.
     int position = index + offset;
     throw "Lexer Error: $message at column $position in expression [$input]";
   }
 }
 
-Set<String> OPERATORS = new Set<String>.from([
+Set<String> KEYWORDS = new Set<String>.from([
+    'null',
     'undefined',
-    'null',
     'true',
     'false',
+]);
+
+Set<String> OPERATORS = new Set<String>.from([
     '+',
     '-',
     '*',
     '/',
     '~/',
     '%',
     '^',
     '=',
     '==',
     '!=',
     '<',
     '>',
     '<=',
     '>=',
     '&&',
     '||',
     '&',
     '|',
     '!',
     '?',
 ]);