[turbofan] Make global variable loads and stores explicit.

src/compiler/verifier.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/verifier.h"
 
 #include <algorithm>
 #include <deque>
 #include <queue>
 #include <sstream>
@@ skipping 503 matching lines @@
       // Type is Function.
       CheckUpperIs(node, Type::OtherObject());
       break;
     case IrOpcode::kJSCreateLiteralArray:
     case IrOpcode::kJSCreateLiteralObject:
       // Type is OtherObject.
       CheckUpperIs(node, Type::OtherObject());
       break;
     case IrOpcode::kJSLoadProperty:
     case IrOpcode::kJSLoadNamed:
+    case IrOpcode::kJSLoadGlobal:
       // Type can be anything.
       CheckUpperIs(node, Type::Any());
       break;
     case IrOpcode::kJSStoreProperty:
     case IrOpcode::kJSStoreNamed:
+    case IrOpcode::kJSStoreGlobal:
       // Type is empty.
       CheckNotTyped(node);
       break;
     case IrOpcode::kJSDeleteProperty:
     case IrOpcode::kJSHasProperty:
     case IrOpcode::kJSInstanceOf:
       // Type is Boolean.
       CheckUpperIs(node, Type::Boolean());
       break;
     case IrOpcode::kJSTypeOf:
@@ skipping 589 matching lines @@
     // Check inputs for all nodes in the block.
     for (size_t i = 0; i < block->NodeCount(); i++) {
       Node* node = block->NodeAt(i);
       CheckInputsDominate(schedule, block, node, static_cast<int>(i) - 1);
     }
   }
 }
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8