[builtins] Sanitize the machinery around Construct calls.

src/crankshaft/mips64/lithium-mips64.cc

Index: src/crankshaft/mips64/lithium-mips64.cc
diff --git a/src/crankshaft/mips64/lithium-mips64.cc b/src/crankshaft/mips64/lithium-mips64.cc
index 4f6d5e0673a6a591c329810d6cfe4ca6a34f5580..bd8067fb5a090d7d604092d84cd2a91f936e870c 100644
--- a/src/crankshaft/mips64/lithium-mips64.cc
+++ b/src/crankshaft/mips64/lithium-mips64.cc
@@ -305,13 +305,6 @@ void LInvokeFunction::PrintDataTo(StringStream* stream) {
 }
 
 
-void LCallNew::PrintDataTo(StringStream* stream) {
-  stream->Add("= ");
-  constructor()->PrintTo(stream);
-  stream->Add(" #%d / ", arity());
-}
-
-
 void LCallNewArray::PrintDataTo(StringStream* stream) {
   stream->Add("= ");
   constructor()->PrintTo(stream);
@@ -1221,14 +1214,6 @@ LInstruction* LChunkBuilder::DoMathRound(HUnaryMathOperation* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoCallNew(HCallNew* instr) {
-  LOperand* context = UseFixed(instr->context(), cp);
-  LOperand* constructor = UseFixed(instr->constructor(), a1);
-  LCallNew* result = new(zone()) LCallNew(context, constructor);
-  return MarkAsCall(DefineFixed(result, v0), instr);
-}
-
-
 LInstruction* LChunkBuilder::DoCallNewArray(HCallNewArray* instr) {
   LOperand* context = UseFixed(instr->context(), cp);
   LOperand* constructor = UseFixed(instr->constructor(), a1);