Fix the build on ARM.

src/arm/code-stubs-arm.cc

Index: src/arm/code-stubs-arm.cc
===================================================================
--- src/arm/code-stubs-arm.cc	(revision 9459)
+++ src/arm/code-stubs-arm.cc	(working copy)
@@ -877,8 +877,8 @@
 void WriteInt32ToHeapNumberStub::GenerateFixedRegStubsAheadOfTime() {
   WriteInt32ToHeapNumberStub stub1(r1, r0, r2);
   WriteInt32ToHeapNumberStub stub2(r2, r0, r3);
-  Handle<Code> code1 = stub1.GetCode()->set_is_pregenerated(true);
-  Handle<Code> code2 = stub2.GetCode()->set_is_pregenerated(true);
+  stub1.GetCode()->set_is_pregenerated(true);
+  stub2.GetCode()->set_is_pregenerated(true);
 }
 
 
@@ -3413,7 +3413,8 @@
 
 void CodeStub::GenerateFPStubs() {
   CEntryStub save_doubles(1, kSaveFPRegs);
-  Handle<Code> code = save_doubles.GetCode()->set_is_pregenerated(true);
+  Handle<Code> code = save_doubles.GetCode();
+  code->set_is_pregenerated(true);
   code->GetIsolate()->set_fp_stubs_generated(true);
 }