[turbofan] Remove usage of Unique<T> from graph.

test/cctest/compiler/test-js-context-specialization.cc

 // Copyright 2014 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.
 
 #include "src/compiler/js-context-specialization.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/source-position.h"
@@ skipping 75 matching lines @@
   {
     // Mutable slot, constant context, depth > 0 => fold-in parent context.
     Node* load = t.graph()->NewNode(
         t.javascript()->LoadContext(2, Context::GLOBAL_EVAL_FUN_INDEX, false),
         deep_const_context, deep_const_context, start);
     Reduction r = t.spec()->Reduce(load);
     CHECK(r.Changed());
     Node* new_context_input = NodeProperties::GetValueInput(r.replacement(), 0);
     CHECK_EQ(IrOpcode::kHeapConstant, new_context_input->opcode());
     HeapObjectMatcher match(new_context_input);
-    CHECK_EQ(*native, *match.Value().handle());
+    CHECK_EQ(*native, *match.Value());
     ContextAccess access = OpParameter<ContextAccess>(r.replacement());
     CHECK_EQ(Context::GLOBAL_EVAL_FUN_INDEX, static_cast<int>(access.index()));
     CHECK_EQ(0, static_cast<int>(access.depth()));
     CHECK_EQ(false, access.immutable());
   }
 
   {
     // Immutable slot, constant context, depth = 0 => specialize.
     Node* load = t.graph()->NewNode(t.javascript()->LoadContext(0, slot, true),
                                     const_context, const_context, start);
     Reduction r = t.spec()->Reduce(load);
     CHECK(r.Changed());
     CHECK(r.replacement() != load);
 
     HeapObjectMatcher match(r.replacement());
     CHECK(match.HasValue());
-    CHECK_EQ(*expected, *match.Value().handle());
+    CHECK_EQ(*expected, *match.Value());
   }
 
   // TODO(titzer): test with other kinds of contexts, e.g. a function context.
   // TODO(sigurds): test that loads below create context are not optimized
 }
 
 
 TEST(ReduceJSStoreContext) {
   ContextSpecializationTester t;
 
@@ skipping 41 matching lines @@
   {
     // Mutable slot, constant context, depth > 0 => fold-in parent context.
     Node* load = t.graph()->NewNode(
         t.javascript()->StoreContext(2, Context::GLOBAL_EVAL_FUN_INDEX),
         deep_const_context, deep_const_context, start);
     Reduction r = t.spec()->Reduce(load);
     CHECK(r.Changed());
     Node* new_context_input = NodeProperties::GetValueInput(r.replacement(), 0);
     CHECK_EQ(IrOpcode::kHeapConstant, new_context_input->opcode());
     HeapObjectMatcher match(new_context_input);
-    CHECK_EQ(*native, *match.Value().handle());
+    CHECK_EQ(*native, *match.Value());
     ContextAccess access = OpParameter<ContextAccess>(r.replacement());
     CHECK_EQ(Context::GLOBAL_EVAL_FUN_INDEX, static_cast<int>(access.index()));
     CHECK_EQ(0, static_cast<int>(access.depth()));
     CHECK_EQ(false, access.immutable());
   }
 }
 
 
 // TODO(titzer): factor out common code with effects checking in typed lowering.
 static void CheckEffectInput(Node* effect, Node* use) {
@@ skipping 56 matching lines @@
 
     // Effects should have been forwarded (not replaced with a value).
     CheckEffectInput(effect_in, effect_use);
 
     // Use of {other_load} should not have been replaced.
     CHECK_EQ(other_load, other_use->InputAt(0));
 
     Node* replacement = value_use->InputAt(0);
     HeapObjectMatcher match(replacement);
     CHECK(match.HasValue());
-    CHECK_EQ(*expected, *match.Value().handle());
+    CHECK_EQ(*expected, *match.Value());
   }
   // TODO(titzer): clean up above test and test more complicated effects.
 }
 
 
 TEST(SpecializeJSFunction_ToConstant1) {
   FunctionTester T(
       "(function() { var x = 1; function inc(a)"
       " { return a + x; } return inc; })()");
 
@@ skipping 40 matching lines @@
   {
     FunctionTester T(
         "(function() { if (false) { var x = 1; } function inc(a)"
         " { return a + x; } return inc; })()");  // x is undefined!
 
     CHECK(T.Call(T.Val(0.0), T.Val(0.0)).ToHandleChecked()->IsNaN());
     CHECK(T.Call(T.Val(2.0), T.Val(0.0)).ToHandleChecked()->IsNaN());
     CHECK(T.Call(T.Val(-2.1), T.Val(0.0)).ToHandleChecked()->IsNaN());
   }
 }