[ignition] Eliminate hole checks where statically possible for loads and stores

src/full-codegen/mips/full-codegen-mips.cc

 // 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.
 
 #if V8_TARGET_ARCH_MIPS
 
 // Note on Mips implementation:
 //
 // The result_register() for mips is the 'v0' register, which is defined
 // by the ABI to contain function return values. However, the first
@@ skipping 1269 matching lines @@
       context()->Plug(v0);
       break;
     }
 
     case VariableLocation::PARAMETER:
     case VariableLocation::LOCAL:
     case VariableLocation::CONTEXT: {
       DCHECK_EQ(NOT_INSIDE_TYPEOF, typeof_mode);
       Comment cmnt(masm_, var->IsContextSlot() ? "[ Context variable"
                                                : "[ Stack variable");
-      if (NeedsHoleCheckForLoad(proxy)) {
+      if (proxy->needs_hole_check()) {
         // Throw a reference error when using an uninitialized let/const
         // binding in harmony mode.
         Label done;
         GetVar(v0, var);
         __ LoadRoot(at, Heap::kTheHoleValueRootIndex);
         __ subu(at, v0, at);  // Sub as compare: at == 0 on eq.
         __ Branch(&done, ne, at, Operand(zero_reg));
         __ li(a0, Operand(var->name()));
         __ push(a0);
         __ CallRuntime(Runtime::kThrowReferenceError);
@@ skipping 2335 matching lines @@
          reinterpret_cast<uint32_t>(
              isolate->builtins()->OnStackReplacement()->entry()));
   return ON_STACK_REPLACEMENT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS