[wasm] Remove special memory type for (internal) globals and use local type instead.

src/wasm/encoder.h

 // Copyright 2015 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_WASM_ENCODER_H_
 #define V8_WASM_ENCODER_H_
 
 #include "src/signature.h"
 #include "src/zone-containers.h"
 
@@ skipping 152 matching lines @@
   const char* name;
   int name_length;
 };
 
 class WasmModuleBuilder : public ZoneObject {
  public:
   explicit WasmModuleBuilder(Zone* zone);
 
   // Building methods.
   uint32_t AddFunction();
-  uint32_t AddGlobal(MachineType type, bool exported);
+  uint32_t AddGlobal(LocalType type, bool exported);
   WasmFunctionBuilder* FunctionAt(size_t index);
   void AddDataSegment(WasmDataSegmentEncoder* data);
   uint32_t AddSignature(FunctionSig* sig);
   void AddIndirectFunction(uint32_t index);
   void MarkStartFunction(uint32_t index);
   uint32_t AddImport(const char* name, int name_length, FunctionSig* sig);
 
   // Writing methods.
   void WriteTo(ZoneBuffer& buffer) const;
 
   struct CompareFunctionSigs {
     bool operator()(FunctionSig* a, FunctionSig* b) const;
   };
   typedef ZoneMap<FunctionSig*, uint32_t, CompareFunctionSigs> SignatureMap;
 
   Zone* zone() { return zone_; }
 
  private:
   Zone* zone_;
   ZoneVector<FunctionSig*> signatures_;
   ZoneVector<WasmFunctionImport> imports_;
   ZoneVector<WasmFunctionBuilder*> functions_;
   ZoneVector<WasmDataSegmentEncoder*> data_segments_;
   ZoneVector<uint32_t> indirect_functions_;
-  ZoneVector<std::pair<MachineType, bool>> globals_;
+  ZoneVector<std::pair<LocalType, bool>> globals_;
   SignatureMap signature_map_;
   int start_function_index_;
 };
 
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_ENCODER_H_