Reland "Handlify GetProperty."

src/liveedit.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 198 matching lines @@
  protected:
   void SetField(int field_position, Handle<Object> value) {
     JSObject::SetElement(array_, field_position, value, NONE, SLOPPY).Assert();
   }
 
   void SetSmiValueField(int field_position, int value) {
     SetField(field_position, Handle<Smi>(Smi::FromInt(value), isolate()));
   }
 
   Handle<Object> GetField(int field_position) {
-    return Object::GetElementNoExceptionThrown(
-        isolate(), array_, field_position);
+    return Object::GetElement(
+        isolate(), array_, field_position).ToHandleChecked();
   }
 
   int GetSmiValueField(int field_position) {
     Handle<Object> res = GetField(field_position);
     return Handle<Smi>::cast(res)->value();
   }
 
  private:
   Handle<JSArray> array_;
 };
@@ skipping 59 matching lines @@
 };
 
 
 // Wraps SharedFunctionInfo along with some of its fields for passing it
 // back to JavaScript. SharedFunctionInfo object itself is additionally
 // wrapped into BlindReference for sanitizing reasons.
 class SharedInfoWrapper : public JSArrayBasedStruct<SharedInfoWrapper> {
  public:
   static bool IsInstance(Handle<JSArray> array) {
     return array->length() == Smi::FromInt(kSize_) &&
-        Object::GetElementNoExceptionThrown(
-            array->GetIsolate(), array, kSharedInfoOffset_)->IsJSValue();
+        Object::GetElement(array->GetIsolate(), array, kSharedInfoOffset_)
+            .ToHandleChecked()->IsJSValue();
   }
 
   explicit SharedInfoWrapper(Handle<JSArray> array)
       : JSArrayBasedStruct<SharedInfoWrapper>(array) {
   }
 
   void SetProperties(Handle<String> name,
                      int start_position,
                      int end_position,
                      Handle<SharedFunctionInfo> info);
 
   Handle<SharedFunctionInfo> GetInfo();
 
  private:
   static const int kFunctionNameOffset_ = 0;
   static const int kStartPositionOffset_ = 1;
   static const int kEndPositionOffset_ = 2;
   static const int kSharedInfoOffset_ = 3;
   static const int kSize_ = 4;
 
   friend class JSArrayBasedStruct<SharedInfoWrapper>;
 };
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 } }  // namespace v8::internal
 
 #endif /* V*_LIVEEDIT_H_ */