Create and test source mapping for invocations.

tests/compiler/dart2js/sourcemaps/source_mapping_test.dart

Index: tests/compiler/dart2js/sourcemaps/source_mapping_test.dart
diff --git a/tests/compiler/dart2js/sourcemaps/source_mapping_test.dart b/tests/compiler/dart2js/sourcemaps/source_mapping_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..831299fe23e3c0ca5abf801bb2791c73dd9c42b4
--- /dev/null
+++ b/tests/compiler/dart2js/sourcemaps/source_mapping_test.dart
@@ -0,0 +1,51 @@
+// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:async_helper/async_helper.dart';
+import 'package:expect/expect.dart';
+import 'sourcemap_helper.dart';
+import 'sourcemap_html_helper.dart';
+import 'package:compiler/src/filenames.dart';
+
+main(List<String> arguments) {
+  bool showAll = false;
+  Uri outputUri;
+  if (arguments.isNotEmpty) {
+    outputUri = Uri.base.resolve(nativeToUriPath(arguments.last));
+    showAll = arguments.contains('-a');
+  }
+  asyncTest(() async {
+    String filename =
+        'tests/compiler/dart2js/sourcemaps/invokes_test_file.dart';
+    SourceMapProcessor processor = new SourceMapProcessor(filename);
+    List<SourceMapInfo> infoList = await processor.process(
+        ['--use-new-source-info', '--csp', '--disable-inlining']);
+    List<SourceMapInfo> userInfoList = <SourceMapInfo>[];
+    List<SourceMapInfo> failureList = <SourceMapInfo>[];
+    for (SourceMapInfo info in infoList) {
+      if (info.element.library.isPlatformLibrary) continue;
+      userInfoList.add(info);
+      Iterable<CodePoint> missingCodePoints =
+          info.codePoints.where((c) => c.isMissing);
+      if (!missingCodePoints.isEmpty) {
+        print('Missing code points ${missingCodePoints} for '
+              '${info.element} in $filename');
+        failureList.add(info);
+      }
+    }
+    if (failureList.isNotEmpty) {
+      if (outputUri == null) {
+        Expect.fail(
+            "Missing code points found. "
+            "Run the test with a URI option, `source_mapping_test <uri>`, to "
+            "create a html visualization of the missing code points.");
+      } else {
+        createTraceSourceMapHtml(outputUri, processor,
+                                 showAll ? userInfoList : failureList);
+      }
+    } else if (outputUri != null) {
+      createTraceSourceMapHtml(outputUri, processor, userInfoList);
+    }
+  });
+}