PPC: More simplification and unification of frame handling

src/crankshaft/ppc/lithium-codegen-ppc.h

Index: src/crankshaft/ppc/lithium-codegen-ppc.h
diff --git a/src/crankshaft/ppc/lithium-codegen-ppc.h b/src/crankshaft/ppc/lithium-codegen-ppc.h
index b0f016d309170fd18bedbdd4e38059fde6e87845..1b72bf82dc26cb81aa49df64d55bbe50316223ee 100644
--- a/src/crankshaft/ppc/lithium-codegen-ppc.h
+++ b/src/crankshaft/ppc/lithium-codegen-ppc.h
@@ -44,7 +44,7 @@ class LCodeGen : public LCodeGenBase {
   }
 
   bool NeedsEagerFrame() const {
-    return GetStackSlotCount() > 0 || info()->is_non_deferred_calling() ||
+    return HasAllocatedStackSlots() || info()->is_non_deferred_calling() ||
            !info()->IsStub() || info()->requires_frame();
   }
   bool NeedsDeferredFrame() const {
@@ -141,7 +141,13 @@ class LCodeGen : public LCodeGenBase {
                        Handle<String> class_name, Register input,
                        Register temporary, Register temporary2);
 
-  int GetStackSlotCount() const { return chunk()->spill_slot_count(); }
+  bool HasAllocatedStackSlots() const {
+    return chunk()->HasAllocatedStackSlots();
+  }
+  int GetStackSlotCount() const { return chunk()->GetSpillSlotCount(); }
+  int GetTotalFrameSlotCount() const {
+    return chunk()->GetTotalFrameSlotCount();
+  }
 
   void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code, zone()); }