[wasm] Rename encoder.(cc,h) to wasm-module-builder.(cc,h)

src/wasm/wasm-module-builder.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_
+#ifndef V8_WASM_WASM_MODULE_BUILDER_H_
+#define V8_WASM_WASM_MODULE_BUILDER_H_
 
 #include "src/signature.h"
 #include "src/zone/zone-containers.h"
 
 #include "src/wasm/leb-helper.h"
 #include "src/wasm/wasm-macro-gen.h"
 #include "src/wasm/wasm-module.h"
 #include "src/wasm/wasm-opcodes.h"
 #include "src/wasm/wasm-result.h"
 
@@ skipping 237 matching lines @@
 };
 
 inline FunctionSig* WasmFunctionBuilder::signature() {
   return builder_->signatures_[signature_index_];
 }
 
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_WASM_ENCODER_H_
+#endif  // V8_WASM_WASM_MODULE_BUILDER_H_