Add support to trace warnings in TraceBuffer.

runtime/vm/parser.cc

 // Copyright (c) 2012, 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.
 
 #include "vm/parser.h"
 
 #include "lib/invocation_mirror.h"
 #include "platform/utils.h"
 #include "vm/bootstrap.h"
 #include "vm/class_finalizer.h"
@@ skipping 7529 matching lines @@
   const Error& error = Error::Handle(isolate(), LanguageError::NewFormattedV(
       Error::Handle(isolate()), script_, token_pos,
       LanguageError::kWarning, Heap::kNew,
       format, args));
   va_end(args);
   if (FLAG_warning_as_error) {
     isolate()->long_jump_base()->Jump(1, error);
     UNREACHABLE();
   } else {
     OS::Print("%s", error.ToErrorCString());
+    va_start(args, format);
+    Exceptions::TraceJSWarningV(script_, token_pos, format, args);
+    va_end(args);
   }
 }
 
 
 void Parser::Warning(const char* format, ...) {
   if (FLAG_silent_warnings) return;
   va_list args;
   va_start(args, format);
   const Error& error = Error::Handle(isolate(), LanguageError::NewFormattedV(
       Error::Handle(isolate()), script_, TokenPos(),
       LanguageError::kWarning, Heap::kNew,
       format, args));
   va_end(args);
   if (FLAG_warning_as_error) {
     isolate()->long_jump_base()->Jump(1, error);
     UNREACHABLE();
   } else {
     OS::Print("%s", error.ToErrorCString());
+    va_start(args, format);
+    Exceptions::TraceJSWarningV(script_, TokenPos(), format, args);
+    va_end(args);
   }
 }
 
 
 void Parser::Unimplemented(const char* msg) {
   ErrorMsg(TokenPos(), "%s", msg);
 }
 
 
 void Parser::CheckToken(Token::Kind token_expected, const char* msg) {
@@ skipping 3488 matching lines @@
 void Parser::SkipQualIdent() {
   ASSERT(IsIdentifier());
   ConsumeToken();
   if (CurrentToken() == Token::kPERIOD) {
     ConsumeToken();  // Consume the kPERIOD token.
     ExpectIdentifier("identifier expected after '.'");
   }
 }
 
 }  // namespace dart