Fix UnboundScript::GetScriptName and GetLineNumber.

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 "api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #include <cmath>  // For isnan.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
@@ skipping 1568 matching lines @@
     i::HandleScope scope(isolate);
     i::Handle<i::SharedFunctionInfo> function_info(
         i::SharedFunctionInfo::cast(*obj));
     i::Handle<i::Script> script(i::Script::cast(function_info->script()));
     return script->id()->value();
   }
 }
 
 
 int UnboundScript::GetLineNumber(int code_pos) {
-  i::Handle<i::HeapObject> obj =
-      i::Handle<i::HeapObject>::cast(Utils::OpenHandle(this));
+  i::Handle<i::SharedFunctionInfo> obj =
+      i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this));
   i::Isolate* isolate = obj->GetIsolate();
   ON_BAILOUT(isolate, "v8::UnboundScript::GetLineNumber()", return -1);
   LOG_API(isolate, "UnboundScript::GetLineNumber");
-  if (obj->IsScript()) {
-    i::Handle<i::Script> script(i::Script::cast(*obj));
+  if (obj->script()->IsScript()) {
+    i::Handle<i::Script> script(i::Script::cast(obj->script()));
     return i::Script::GetLineNumber(script, code_pos);
   } else {
     return -1;
   }
 }
 
 
 Handle<Value> UnboundScript::GetScriptName() {
-  i::Handle<i::HeapObject> obj =
-      i::Handle<i::HeapObject>::cast(Utils::OpenHandle(this));
+  i::Handle<i::SharedFunctionInfo> obj =
+      i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this));
   i::Isolate* isolate = obj->GetIsolate();
   ON_BAILOUT(isolate, "v8::UnboundScript::GetName()",
              return Handle<String>());
   LOG_API(isolate, "UnboundScript::GetName");
-  if (obj->IsScript()) {
-    i::Object* name = i::Script::cast(*obj)->name();
+  if (obj->script()->IsScript()) {
+    i::Object* name = i::Script::cast(obj->script())->name();
     return Utils::ToLocal(i::Handle<i::Object>(name, isolate));
   } else {
     return Handle<String>();
   }
 }
 
 
 Local<Value> Script::Run() {
   // If execution is terminating, Compile(..)->Run() requires this
   // check.
@@ skipping 5938 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