[turbofan] Rename "original constructor" to "new target".

src/runtime/runtime-function.cc

 // Copyright 2014 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/runtime/runtime-utils.h"
 
 #include "src/accessors.h"
 #include "src/arguments.h"
 #include "src/compiler.h"
 #include "src/deoptimizer.h"
@@ skipping 547 matching lines @@
         isolate, argv[i], Object::GetElement(isolate, arguments, offset + i));
   }
 
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, result, Execution::Call(isolate, fun, receiver, argc, argv));
   return *result;
 }
 
 
-RUNTIME_FUNCTION(Runtime_GetOriginalConstructor) {
+RUNTIME_FUNCTION(Runtime_GetNewTarget) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 0);
   JavaScriptFrameIterator it(isolate);
   JavaScriptFrame* frame = it.frame();
   // TODO(4544): Currently we never inline any [[Construct]] calls where the
-  // actual constructor differs from the original constructor. Fix this soon!
+  // actual target differs from the new target. Fix this soon!
   if (frame->HasInlinedFrames()) {
     HandleScope scope(isolate);
     List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
     it.frame()->Summarize(&frames);
     FrameSummary& summary = frames.last();
     return summary.is_constructor() ? Object::cast(*summary.function())
                                     : isolate->heap()->undefined_value();
   }
-  return frame->IsConstructor() ? frame->GetOriginalConstructor()
+  return frame->IsConstructor() ? frame->GetNewTarget()
                                 : isolate->heap()->undefined_value();
 }
 
 
 // ES6 section 9.2.1.2, OrdinaryCallBindThis for sloppy callee.
 RUNTIME_FUNCTION(Runtime_ConvertReceiver) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(Object, receiver, 0);
   if (receiver->IsNull() || receiver->IsUndefined()) {
@@ skipping 24 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_ThrowStrongModeTooFewArguments) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 0);
   THROW_NEW_ERROR_RETURN_FAILURE(isolate,
                                  NewTypeError(MessageTemplate::kStrongArity));
 }
 
 }  // namespace internal
 }  // namespace v8