Bug 615074 to + backing are unused ifndef JS_PUNBOX64 in FrameState::ensureFeSynced. r=dvander, a=dvander.

js/src/methodjit/FrameState-inl.h

@@ -490,12 +490,12 @@ FrameState::shouldAvoidDataRemat(FrameEntry *fe)
 inline void
 FrameState::ensureFeSynced(const FrameEntry *fe, Assembler &masm) const
 {
+#if defined JS_PUNBOX64
     Address to = addressOf(fe);
     const FrameEntry *backing = fe;
     if (fe->isCopy())
         backing = fe->copyOf();
 
-#if defined JS_PUNBOX64
     /* If we can, sync the type and data in one go. */
     if (!fe->data.synced() && !fe->type.synced()) {
         if (backing->isConstant())