Revert 13105: "Enable stub generation using Hydrogen/Lithium."

src/x64/lithium-codegen-x64.h

Index: src/x64/lithium-codegen-x64.h
diff --git a/src/x64/lithium-codegen-x64.h b/src/x64/lithium-codegen-x64.h
index 2fa10e151766dc7d7bbc896bd11f0769b8dfc5af..e068f14b5ad94c833b5b17a3019a00846ada9e14 100644
--- a/src/x64/lithium-codegen-x64.h
+++ b/src/x64/lithium-codegen-x64.h
@@ -63,7 +63,6 @@ class LCodeGen BASE_EMBEDDED {
         deferred_(8, info->zone()),
         osr_pc_offset_(-1),
         last_lazy_deopt_pc_(0),
-        frame_is_built_(false),
         safepoints_(info->zone()),
         resolver_(this),
         expected_safepoint_kind_(Safepoint::kSimple) {
@@ -78,15 +77,6 @@ class LCodeGen BASE_EMBEDDED {
   Heap* heap() const { return isolate()->heap(); }
   Zone* zone() const { return zone_; }
 
-  bool NeedsEagerFrame() const {
-    return GetStackSlotCount() > 0 ||
-        info()->is_non_deferred_calling() ||
-        !info()->IsStub();
-  }
-  bool NeedsDeferredFrame() const {
-    return !NeedsEagerFrame() && info()->is_deferred_calling();
-  }
-
   // Support for converting LOperands to assembler types.
   Register ToRegister(LOperand* op) const;
   XMMRegister ToDoubleRegister(LOperand* op) const;
@@ -120,7 +110,7 @@ class LCodeGen BASE_EMBEDDED {
                                        Label* map_check);
 
   void DoCheckMapCommon(Register reg, Handle<Map> map,
-                        CompareMapMode mode, LInstruction* instr);
+                        CompareMapMode mode, LEnvironment* env);
 
 // Parallel move support.
   void DoParallelMove(LParallelMove* move);
@@ -168,7 +158,7 @@ class LCodeGen BASE_EMBEDDED {
                        Register scratch);
 
   int GetStackSlotCount() const { return chunk()->spill_slot_count(); }
-  int GetParameterCount() const { return info()->num_parameters(); }
+  int GetParameterCount() const { return scope()->num_parameters(); }
 
   void Abort(const char* reason);
   void Comment(const char* format, ...);
@@ -337,15 +327,11 @@ class LCodeGen BASE_EMBEDDED {
                     int* offset);
 
   struct JumpTableEntry {
-    inline JumpTableEntry(Address entry, bool frame, bool is_lazy)
+    explicit inline JumpTableEntry(Address entry)
         : label(),
-          address(entry),
-          needs_frame(frame),
-          is_lazy_deopt(is_lazy) { }
+          address(entry) { }
     Label label;
     Address address;
-    bool needs_frame;
-    bool is_lazy_deopt;
   };
 
   void EnsureSpaceForLazyDeopt(int space_needed);
@@ -374,7 +360,6 @@ class LCodeGen BASE_EMBEDDED {
   ZoneList<LDeferredCode*> deferred_;
   int osr_pc_offset_;
   int last_lazy_deopt_pc_;
-  bool frame_is_built_;
 
   // Builder that keeps track of safepoints in the code. The table
   // itself is emitted at the end of the generated code.
@@ -389,7 +374,6 @@ class LCodeGen BASE_EMBEDDED {
    public:
     explicit PushSafepointRegistersScope(LCodeGen* codegen)
         : codegen_(codegen) {
-      ASSERT(codegen_->info()->is_calling());
       ASSERT(codegen_->expected_safepoint_kind_ == Safepoint::kSimple);
       codegen_->masm_->PushSafepointRegisters();
       codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters;