rename fasta.Token.value --> lexeme

pkg/front_end/lib/src/fasta/scanner/token.dart

Index: pkg/front_end/lib/src/fasta/scanner/token.dart
diff --git a/pkg/front_end/lib/src/fasta/scanner/token.dart b/pkg/front_end/lib/src/fasta/scanner/token.dart
index 43eed184995fa4a18c97672fad43a7488df9304e..6cacd012d2b5b5260dfdc555b6dcdb902a9094c9 100644
--- a/pkg/front_end/lib/src/fasta/scanner/token.dart
+++ b/pkg/front_end/lib/src/fasta/scanner/token.dart
@@ -56,9 +56,9 @@ abstract class Token {
   /**
    * The string represented by this token, a substring of the source code.
    *
-   * For [StringToken]s the [value] includes the quotes, explicit escapes, etc.
+   * For [StringToken]s the [lexeme] includes the quotes, explicit escapes, etc.
    */
-  String get value;
+  String get lexeme;
 
   /**
    * For symbol and keyword tokens, returns the string value represented by this
@@ -70,7 +70,7 @@ abstract class Token {
    * [:identical('class', token.value):].
    *
    * Note that returning [:null:] for string tokens is important to identify
-   * symbols and keywords, we cannot use [value] instead. The string literal
+   * symbols and keywords, we cannot use [lexeme] instead. The string literal
    *   "$a($b"
    * produces ..., SymbolToken($), StringToken(a), StringToken((), ...
    *
@@ -102,7 +102,7 @@ abstract class Token {
    * structure of the token, for example 'StringToken(foo)' for the identifier
    * token 'foo'.
    *
-   * Use [value] for the text actually parsed by the token.
+   * Use [lexeme] for the text actually parsed by the token.
    */
   String toString();
 
@@ -115,7 +115,7 @@ abstract class Token {
       // instead of the size of the length of the error message.
       return 1;
     } else {
-      return value.length;
+      return lexeme.length;
     }
   }
 
@@ -134,13 +134,13 @@ class SymbolToken extends Token {
 
   SymbolToken(this.info, int charOffset) : super(charOffset);
 
-  String get value => info.value;
+  String get lexeme => info.value;
 
   String get stringValue => info.value;
 
   bool isIdentifier() => false;
 
-  String toString() => "SymbolToken($value)";
+  String toString() => "SymbolToken($lexeme)";
 
   bool get isEof => info == EOF_INFO;
 }
@@ -168,13 +168,13 @@ class KeywordToken extends Token {
 
   PrecedenceInfo get info => keyword.info;
 
-  String get value => keyword.syntax;
+  String get lexeme => keyword.syntax;
 
   String get stringValue => keyword.syntax;
 
   bool isIdentifier() => keyword.isPseudo || keyword.isBuiltIn;
 
-  String toString() => "KeywordToken($value)";
+  String toString() => "KeywordToken($lexeme)";
 }
 
 /**
@@ -240,7 +240,7 @@ class StringToken extends Token {
     }
   }
 
-  String get value {
+  String get lexeme {
     if (valueOrLazySubstring is String) {
       return valueOrLazySubstring;
     } else {
@@ -264,7 +264,7 @@ class StringToken extends Token {
 
   bool isIdentifier() => identical(kind, IDENTIFIER_TOKEN);
 
-  String toString() => "StringToken($value)";
+  String toString() => "StringToken($lexeme)";
 
   static final StringCanonicalizer canonicalizer = new StringCanonicalizer();