Fix sourceURL & sourceMapURL handling in case of background parsing

src/api.cc

 // 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.
 
 #include "src/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 1762 matching lines @@
                                          v8::True(v8_isolate));
     }
     source->info->set_script(script);
     source->info->SetContext(isolate->native_context());
 
     EXCEPTION_PREAMBLE(isolate);
 
     // Do the parsing tasks which need to be done on the main thread. This will
     // also handle parse errors.
     source->parser->Internalize();
+    source->parser->HandleSourceURLComments();
 
     i::Handle<i::SharedFunctionInfo> result =
         i::Handle<i::SharedFunctionInfo>::null();
     if (source->info->function() != NULL) {
       // Parsing has succeeded.
       result =
           i::Compiler::CompileStreamedScript(source->info.get(), str->length());
     }
     has_pending_exception = result.is_null();
     if (has_pending_exception) isolate->ReportPendingMessages();
@@ skipping 5969 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 } }  // namespace v8::internal