[wasm] [asmjs] Route asm.js warnings to the dev console.

src/api.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_API_H_
 #define V8_API_H_
 
 #include "include/v8-testing.h"
 #include "src/contexts.h"
 #include "src/debug/debug-interface.h"
@@ skipping 103 matching lines @@
 
 class Utils {
  public:
   static inline bool ApiCheck(bool condition,
                               const char* location,
                               const char* message) {
     if (!condition) Utils::ReportApiFailure(location, message);
     return condition;
   }
   static void ReportOOMFailure(const char* location, bool is_heap_oom);
+  static void ReportAsmJsWarning(i::Handle<i::JSMessageObject> message);
 
   static inline Local<Context> ToLocal(
       v8::internal::Handle<v8::internal::Context> obj);
   static inline Local<Value> ToLocal(
       v8::internal::Handle<v8::internal::Object> obj);
   static inline Local<Module> ToLocal(
       v8::internal::Handle<v8::internal::Module> obj);
   static inline Local<Name> ToLocal(
       v8::internal::Handle<v8::internal::Name> obj);
   static inline Local<String> ToLocal(
@@ skipping 530 matching lines @@
   }
 
  private:
   static v8::Testing::StressType stress_type_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_API_H_