Remove HCallGlobal and merge uses with HCallNamed.

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index 2ebc197d9998755247e4d3735ff271c1772f51a9..e329b21eb3d564033ba9230e8ac19648845f43a1 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -316,12 +316,6 @@ void LCallNamed::PrintDataTo(StringStream* stream) {
 }
 
 
-void LCallGlobal::PrintDataTo(StringStream* stream) {
-  SmartArrayPointer<char> name_string = name()->ToCString();
-  stream->Add("%s #%d / ", name_string.get(), arity());
-}
-
-
 void LCallKnownGlobal::PrintDataTo(StringStream* stream) {
   stream->Add("#%d / ", arity());
 }
@@ -1191,13 +1185,6 @@ LInstruction* LChunkBuilder::DoCallNamed(HCallNamed* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoCallGlobal(HCallGlobal* instr) {
-  LOperand* context = UseFixed(instr->context(), rsi);
-  LCallGlobal* result = new(zone()) LCallGlobal(context);
-  return MarkAsCall(DefineFixed(result, rax), instr);
-}
-
-
 LInstruction* LChunkBuilder::DoCallKnownGlobal(HCallKnownGlobal* instr) {
   return MarkAsCall(DefineFixed(new(zone()) LCallKnownGlobal, rax), instr);
 }