Enable enums by default.

tests/compiler/dart2js/resolver_test.dart

Index: tests/compiler/dart2js/resolver_test.dart
diff --git a/tests/compiler/dart2js/resolver_test.dart b/tests/compiler/dart2js/resolver_test.dart
index 207ffa4488d646e80554efb8c8af1c8ebe4248ae..785d6d5e5b1bd915e7906dd4e4f339c51a2850c6 100644
--- a/tests/compiler/dart2js/resolver_test.dart
+++ b/tests/compiler/dart2js/resolver_test.dart
@@ -817,7 +817,7 @@ Future testEnumDeclaration() {
                     'Unexpected warnings: ${compiler.warnings}');
       Expect.equals(1, compiler.errors.length,
                     'Unexpected errors: ${compiler.errors}');
-    }, enableEnums: true),
+    }),
 
     MockCompiler.create((MockCompiler compiler) {
       compiler.parseScript("""enum Enum { A }
@@ -828,7 +828,7 @@ Future testEnumDeclaration() {
                     'Unexpected warnings: ${compiler.warnings}');
       Expect.equals(0, compiler.errors.length,
                     'Unexpected errors: ${compiler.errors}');
-    }, enableEnums: true),
+    }),
 
     MockCompiler.create((MockCompiler compiler) {
       compiler.parseScript("""enum Enum { A }
@@ -841,7 +841,7 @@ Future testEnumDeclaration() {
                     compiler.warnings[0].message.kind);
       Expect.equals(0, compiler.errors.length,
                     'Unexpected errors: ${compiler.errors}');
-    }, enableEnums: true),
+    }),
 
     MockCompiler.create((MockCompiler compiler) {
       compiler.parseScript("""enum Enum { A }
@@ -852,7 +852,7 @@ Future testEnumDeclaration() {
                     'Unexpected warnings: ${compiler.warnings}');
       Expect.equals(0, compiler.errors.length,
                     'Unexpected errors: ${compiler.errors}');
-    }, enableEnums: true),
+    }),
 
     MockCompiler.create((MockCompiler compiler) {
       compiler.parseScript("""enum Enum { A }
@@ -865,7 +865,7 @@ Future testEnumDeclaration() {
                     'Unexpected errors: ${compiler.errors}');
       Expect.equals(MessageKind.CANNOT_INSTANTIATE_ENUM,
                     compiler.errors[0].message.kind);
-    }, enableEnums: true),
+    }),
 
     MockCompiler.create((MockCompiler compiler) {
       compiler.parseScript("""enum Enum { A }
@@ -878,7 +878,7 @@ Future testEnumDeclaration() {
                     'Unexpected errors: ${compiler.errors}');
       Expect.equals(MessageKind.CANNOT_INSTANTIATE_ENUM,
                     compiler.errors[0].message.kind);
-    }, enableEnums: true),
+    }),
   ]);
 }