Fix DeferredInstanceMigration to store the result to temp rather than temp to result.

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index 852ed1ca942f84693f7834fb89d9fe1db61979c4..6ca8851337cc5350ff0ed64e4a0c87c0530b0c8f 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -5219,7 +5219,7 @@ void LCodeGen::DoDeferredInstanceMigration(LCheckMaps* instr, Register object) {
     PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters);
     __ push(object);
     CallRuntimeFromDeferred(Runtime::kMigrateInstance, 1, instr);
-    __ StoreToSafepointRegisterSlot(scratch0(), r0);
+    __ StoreToSafepointRegisterSlot(r0, scratch0());
   }
   __ tst(scratch0(), Operand(kSmiTagMask));
   DeoptimizeIf(eq, instr->environment());