[stubs] Further optimize Load/StoreGlobalViaContext stubs.

src/ia32/lithium-ia32.cc

Index: src/ia32/lithium-ia32.cc
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index eeccdd0502478b7d5f6eb9fba1b6b698330fab31..e07c1e8b3eb9645d7d8423e14d4dd5691fa756b9 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -380,8 +380,7 @@ LOperand* LPlatformChunk::GetNextSpillSlot(RegisterKind kind) {
 
 
 void LLoadGlobalViaContext::PrintDataTo(StringStream* stream) {
-  stream->Add(String::cast(*name())->ToCString().get());
-  stream->Add(" depth:%d slot:%d", depth(), slot_index());
+  stream->Add("depth:%d slot:%d", depth(), slot_index());
 }
 
 
@@ -404,10 +403,8 @@ void LStoreNamedGeneric::PrintDataTo(StringStream* stream) {
 
 
 void LStoreGlobalViaContext::PrintDataTo(StringStream* stream) {
-  stream->Add(String::cast(*name())->ToCString().get());
-  stream->Add(" <- ");
+  stream->Add("depth:%d slot:%d <- ", depth(), slot_index());
   value()->PrintTo(stream);
-  stream->Add(" depth:%d slot:%d", depth(), slot_index());
 }