Fixes for map literal tests.

pkg/analyzer/test/generated/parser_test.dart

Index: pkg/analyzer/test/generated/parser_test.dart
diff --git a/pkg/analyzer/test/generated/parser_test.dart b/pkg/analyzer/test/generated/parser_test.dart
index dc254815fd3e76f660f2151b37a49435e9c10091..a0e80eb0a0acf1bd632d9a661862ca40012744ed 100644
--- a/pkg/analyzer/test/generated/parser_test.dart
+++ b/pkg/analyzer/test/generated/parser_test.dart
@@ -5347,7 +5347,7 @@ abstract class ExpressionParserTestMixin implements AbstractParserTestCase {
     MapLiteral literal = parseMapLiteral(token, '<String, int>', '{}');
     expect(literal, isNotNull);
     assertNoErrors();
-    expect(literal.constKeyword, token);
+    expect(literal.constKeyword.keyword, Keyword.CONST);
     expect(literal.typeArguments, isNotNull);
     expect(literal.leftBracket, isNotNull);
     expect(literal.entries, hasLength(0));