Split parser/listener.dart, parser/class_element_listener.dart and tokens/token.dart into smaller l…

pkg/compiler/lib/src/parser/partial_parser.dart

Index: pkg/compiler/lib/src/parser/partial_parser.dart
diff --git a/pkg/compiler/lib/src/parser/partial_parser.dart b/pkg/compiler/lib/src/parser/partial_parser.dart
index 813da3ac5071a4eb7a91208d16e9b5e51953fc13..b0f5cd5ac1a1ab822215b00e7293e4f4d5da3053 100644
--- a/pkg/compiler/lib/src/parser/partial_parser.dart
+++ b/pkg/compiler/lib/src/parser/partial_parser.dart
@@ -6,13 +6,14 @@ library dart2js.parser.partial;
 
 import '../diagnostics/messages.dart' show
     MessageKind;
-import '../util/characters.dart' show
+import '../util/characters.dart' as Characters show
     $CLOSE_CURLY_BRACKET;
 import '../tokens/token.dart' show
     BeginGroupToken,
-    EOF_TOKEN,
     ErrorToken,
     Token;
+import '../tokens/token_constants.dart' as Tokens show
+    EOF_TOKEN;
 
 import 'listener.dart' show
     Listener;
@@ -44,7 +45,7 @@ class PartialParser extends Parser {
     while (true) {
       final kind = token.kind;
       final value = token.stringValue;
-      if ((identical(kind, EOF_TOKEN)) ||
+      if ((identical(kind, Tokens.EOF_TOKEN)) ||
           (identical(value, ';')) ||
           (identical(value, ',')) ||
           (identical(value, '}')) ||
@@ -112,7 +113,7 @@ class PartialParser extends Parser {
     Token endGroup = beginGroupToken.endGroup;
     if (endGroup == null) {
       return listener.unmatched(beginGroupToken);
-    } else if (!identical(endGroup.kind, $CLOSE_CURLY_BRACKET)) {
+    } else if (!identical(endGroup.kind, Characters.$CLOSE_CURLY_BRACKET)) {
       return listener.unmatched(beginGroupToken);
     }
     return endGroup;