Desugar %DefaultConstructorCallSuper partially in parser.

src/full-codegen/ppc/full-codegen-ppc.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.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
 #include "src/compiler.h"
@@ skipping 4094 matching lines @@
   __ bind(&done);
 
   context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitDefaultConstructorCallSuper(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 2);
 
-  // new.target
+  // Evaluate new.target and super constructor.
   VisitForStackValue(args->at(0));
-
-  // .this_function
   VisitForStackValue(args->at(1));
-  __ CallRuntime(Runtime::kGetPrototype, 1);
-  __ mr(r4, result_register());
-  __ Push(r4);
 
   // Load original constructor into r7.
   __ LoadP(r7, MemOperand(sp, 1 * kPointerSize));
 
   // Check if the calling frame is an arguments adaptor frame.
   Label adaptor_frame, args_set_up, runtime;
   __ LoadP(r5, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
   __ LoadP(r6, MemOperand(r5, StandardFrameConstants::kContextOffset));
   __ CmpSmiLiteral(r6, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR), r0);
   __ beq(&adaptor_frame);
@@ skipping 1181 matching lines @@
     return ON_STACK_REPLACEMENT;
   }
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_PPC