[wasm] Introduce the --print-wasm-code flag to print wasm code.

src/compilation-info.h

 // Copyright 2016 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_COMPILATION_INFO_H_
 #define V8_COMPILATION_INFO_H_
 
 #include <memory>
 
 #include "src/compilation-dependencies.h"
@@ skipping 192 matching lines @@
 
   bool has_native_context() const;
   Context* native_context() const;
 
   bool has_global_object() const;
   JSGlobalObject* global_object() const;
 
   // Accessors for the different compilation modes.
   bool IsOptimizing() const { return mode_ == OPTIMIZE; }
   bool IsStub() const { return mode_ == STUB; }
+  bool IsWasm() const { return output_code_kind() == Code::WASM_FUNCTION; }
   void SetOptimizing();
   void SetOptimizingForOsr(BailoutId osr_ast_id, JavaScriptFrame* osr_frame) {
     SetOptimizing();
     osr_ast_id_ = osr_ast_id;
     osr_frame_ = osr_frame;
   }
 
   // Deoptimization support.
   bool HasDeoptimizationSupport() const {
     return GetFlag(kDeoptimizationSupport);
@@ skipping 164 matching lines @@
 
   Vector<const char> debug_name_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationInfo);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILATION_INFO_H_