Support StringLength in hydrogen (similar to ArrayLength).

src/x64/ic-x64.cc

Index: src/x64/ic-x64.cc
diff --git a/src/x64/ic-x64.cc b/src/x64/ic-x64.cc
index e31a341dc340f53b095287febccee8ae8a800cdf..d060e31cedf522219b973275d9a481f10345bec9 100644
--- a/src/x64/ic-x64.cc
+++ b/src/x64/ic-x64.cc
@@ -397,7 +397,7 @@ void LoadIC::GenerateArrayLength(MacroAssembler* masm) {
 }
 
 
-void LoadIC::GenerateStringLength(MacroAssembler* masm) {
+void LoadIC::GenerateStringLength(MacroAssembler* masm, bool support_wrappers) {
   // ----------- S t a t e -------------
   //  -- rax    : receiver
   //  -- rcx    : name
@@ -405,7 +405,8 @@ void LoadIC::GenerateStringLength(MacroAssembler* masm) {
   // -----------------------------------
   Label miss;
 
-  StubCompiler::GenerateLoadStringLength(masm, rax, rdx, rbx, &miss);
+  StubCompiler::GenerateLoadStringLength(masm, rax, rdx, rbx, &miss,
+                                         support_wrappers);
   __ bind(&miss);
   StubCompiler::GenerateLoadMiss(masm, Code::LOAD_IC);
 }