ARM: Implement StringLength and StringCharCodeAt in the lithium-arm

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 799e077a330e37fa51443881bd67d402ca8cdd2a..7d8086fe83261820ba3005cd4b6255d29366e97b 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -1744,8 +1744,8 @@ LInstruction* LChunkBuilder::DoStoreNamedGeneric(HStoreNamedGeneric* instr) {
 LInstruction* LChunkBuilder::DoStringCharCodeAt(HStringCharCodeAt* instr) {
   LOperand* string = UseRegister(instr->string());
   LOperand* index = UseRegisterOrConstant(instr->index());
-  return AssignEnvironment(AssignPointerMap(DefineAsRegister(
-      new LStringCharCodeAt(string, index))));
+  LInstruction* result = new LStringCharCodeAt(string, index);
+  return AssignEnvironment(AssignPointerMap(DefineAsRegister(result)));
 }