Remove redundancy in source map entries.

tests/compiler/dart2js/source_map_pub_build_validity_test.dart

Index: tests/compiler/dart2js/source_map_pub_build_validity_test.dart
diff --git a/tests/compiler/dart2js/source_map_pub_build_consistency_test.dart b/tests/compiler/dart2js/source_map_pub_build_validity_test.dart
similarity index 91%
rename from tests/compiler/dart2js/source_map_pub_build_consistency_test.dart
rename to tests/compiler/dart2js/source_map_pub_build_validity_test.dart
index f8dceb59721dc91b9080c29d70f1690e88f55e92..8aabf5d4ab357c3c25d1ec40f6048de6912443de 100644
--- a/tests/compiler/dart2js/source_map_pub_build_consistency_test.dart
+++ b/tests/compiler/dart2js/source_map_pub_build_validity_test.dart
@@ -7,7 +7,7 @@ import 'dart:io';
 import 'package:path/path.dart' as path;
 import 'package:async_helper/async_helper.dart';
 
-import 'source_map_consistency_helper.dart';
+import 'source_map_validator_helper.dart';
 
 void main() {
   asyncTest(() => createTempDir().then((Directory tmpDir) {
@@ -24,7 +24,7 @@ void main() {
     return Process.run(command, ['build','--mode=debug'],
         workingDirectory: tmpDir.path).then((process) {
       print(process.stdout);
-      checkConsistency(new Uri.file(file, windows: Platform.isWindows));
+      validateSourceMap(new Uri.file(file, windows: Platform.isWindows));
       print("Deleting '${tmpDir.path}'.");
       tmpDir.deleteSync(recursive: true);
     });