Adds the ability to run pure Go unit tests in the Mojo test suite.

mojom/mojom_parser/lexer/lexer_test.go

Index: mojom/mojom_parser/lexer/lexer_test.go
diff --git a/mojom/mojom_parser/lexer/lexer_test.go b/mojom/mojom_parser/lexer/lexer_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..1b378a77bbc61b8f178c6843d37b198ebc079c20
--- /dev/null
+++ b/mojom/mojom_parser/lexer/lexer_test.go
@@ -0,0 +1,15 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package lexer
+
+import "testing"
+
+// TODO(rudominer) This dummy test is here in order to be able to test the
+// go unit test infrastructure. It will eventually be replaced by a real test.
+func TestDummyLexerTest(t *testing.T) {
+	if 5.1 > 2.1*3.1 {
+		t.Fatalf("Something is wrong.")
+	}
+}