Propagate a Failure from GenerateDictionaryNegativeLookup instead of causing GC.

src/arm/macro-assembler-arm.cc

Index: src/arm/macro-assembler-arm.cc
diff --git a/src/arm/macro-assembler-arm.cc b/src/arm/macro-assembler-arm.cc
index 3f2b01ea2c6e7cb0b9a757c655ce0648af092efd..889e9815a01526829c4efffdc363da41e342df72 100644
--- a/src/arm/macro-assembler-arm.cc
+++ b/src/arm/macro-assembler-arm.cc
@@ -1734,6 +1734,17 @@ void MacroAssembler::CallStub(CodeStub* stub, Condition cond) {
 }
 
 
+MaybeObject* MacroAssembler::TryCallStub(CodeStub* stub, Condition cond) {
+  ASSERT(allow_stub_calls());  // Stub calls are not allowed in some stubs.
+  Object* result;
+  { MaybeObject* maybe_result = stub->TryGetCode();
+    if (!maybe_result->ToObject(&result)) return maybe_result;
+  }
+  Call(Handle<Code>(Code::cast(result)), RelocInfo::CODE_TARGET, cond);
+  return result;
+}
+
+
 void MacroAssembler::TailCallStub(CodeStub* stub, Condition cond) {
   ASSERT(allow_stub_calls());  // Stub calls are not allowed in some stubs.
   Jump(stub->GetCode(), RelocInfo::CODE_TARGET, cond);