Remove all non-function-name uses of CONST_LEGACY

src/crankshaft/hydrogen-instructions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_CRANKSHAFT_HYDROGEN_INSTRUCTIONS_H_
 #define V8_CRANKSHAFT_HYDROGEN_INSTRUCTIONS_H_
 
 #include <cstring>
 #include <iosfwd>
 
@@ skipping 5208 matching lines @@
 
 class HLoadContextSlot final : public HUnaryOperation {
  public:
   enum Mode {
     // Perform a normal load of the context slot without checking its value.
     kNoCheck,
     // Load and check the value of the context slot. Deoptimize if it's the
     // hole value. This is used for checking for loading of uninitialized
     // harmony bindings where we deoptimize into full-codegen generated code
     // which will subsequently throw a reference error.
-    kCheckDeoptimize,
-    // Load and check the value of the context slot. Return undefined if it's
-    // the hole value. This is used for non-harmony const assignments
-    kCheckReturnUndefined
+    kCheckDeoptimize
   };
 
   HLoadContextSlot(HValue* context, int slot_index, Mode mode)
       : HUnaryOperation(context), slot_index_(slot_index), mode_(mode) {
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
     SetDependsOnFlag(kContextSlots);
   }
 
   int slot_index() const { return slot_index_; }
@@ skipping 32 matching lines @@
 class HStoreContextSlot final : public HTemplateInstruction<2> {
  public:
   enum Mode {
     // Perform a normal store to the context slot without checking its previous
     // value.
     kNoCheck,
     // Check the previous value of the context slot and deoptimize if it's the
     // hole value. This is used for checking for assignments to uninitialized
     // harmony bindings where we deoptimize into full-codegen generated code
     // which will subsequently throw a reference error.
-    kCheckDeoptimize,
-    // Check the previous value and ignore assignment if it isn't a hole value
-    kCheckIgnoreAssignment
+    kCheckDeoptimize
   };
 
   DECLARE_INSTRUCTION_FACTORY_P4(HStoreContextSlot, HValue*, int,
                                  Mode, HValue*);
 
   HValue* context() const { return OperandAt(0); }
   HValue* value() const { return OperandAt(1); }
   int slot_index() const { return slot_index_; }
   Mode mode() const { return mode_; }
 
@@ skipping 1944 matching lines @@
   bool IsDeletable() const override { return true; }
 };
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CRANKSHAFT_HYDROGEN_INSTRUCTIONS_H_