Support StringLength in hydrogen (similar to ArrayLength).

src/arm/ic-arm.cc

Index: src/arm/ic-arm.cc
diff --git a/src/arm/ic-arm.cc b/src/arm/ic-arm.cc
index 51a8149efb178d103d5bdccb2bd61c3edc481ae1..33e497eb56244337e1ea1373c7b8e164ac2d239b 100644
--- a/src/arm/ic-arm.cc
+++ b/src/arm/ic-arm.cc
@@ -379,7 +379,7 @@ void LoadIC::GenerateArrayLength(MacroAssembler* masm) {
 }
 
 
-void LoadIC::GenerateStringLength(MacroAssembler* masm) {
+void LoadIC::GenerateStringLength(MacroAssembler* masm, bool support_wrappers) {
   // ----------- S t a t e -------------
   //  -- r2    : name
   //  -- lr    : return address
@@ -388,7 +388,8 @@ void LoadIC::GenerateStringLength(MacroAssembler* masm) {
   // -----------------------------------
   Label miss;
 
-  StubCompiler::GenerateLoadStringLength(masm, r0, r1, r3, &miss);
+  StubCompiler::GenerateLoadStringLength(masm, r0, r1, r3, &miss,
+                                         support_wrappers);
   // Cache miss: Jump to runtime.
   __ bind(&miss);
   StubCompiler::GenerateLoadMiss(masm, Code::LOAD_IC);