Remove all non-function-name uses of CONST_LEGACY

src/crankshaft/hydrogen-instructions.h

Index: src/crankshaft/hydrogen-instructions.h
diff --git a/src/crankshaft/hydrogen-instructions.h b/src/crankshaft/hydrogen-instructions.h
index 196a14fc705533c86e6cbf1ccf1ae10941606ee4..23f3c575277aa4cee5c6029deca7200c82899ed4 100644
--- a/src/crankshaft/hydrogen-instructions.h
+++ b/src/crankshaft/hydrogen-instructions.h
@@ -5226,10 +5226,7 @@ class HLoadContextSlot final : public HUnaryOperation {
     // 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)
@@ -5282,9 +5279,7 @@ class HStoreContextSlot final : public HTemplateInstruction<2> {
     // 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,