[inspector] Introduce translation of wasm frames

src/debug/debug-interface.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_DEBUG_DEBUG_INTERFACE_H_
 #define V8_DEBUG_DEBUG_INTERFACE_H_
 
 #include "include/v8-debug.h"
 #include "include/v8-util.h"
 #include "include/v8.h"
@@ skipping 161 matching lines @@
     bool WasCompiled() const;
     int Id() const;
     int LineOffset() const;
     int ColumnOffset() const;
     std::vector<int> LineEnds() const;
     MaybeLocal<String> Name() const;
     MaybeLocal<String> SourceURL() const;
     MaybeLocal<String> SourceMappingURL() const;
     MaybeLocal<String> ContextData() const;
     MaybeLocal<String> Source() const;
+    bool IsWasm() const;
     bool GetPossibleBreakpoints(const Location& start, const Location& end,
                                 std::vector<Location>* locations) const;
 
     /**
      * script parameter is a wrapper v8::internal::JSObject for
      * v8::internal::Script.
      * This function gets v8::internal::Script from v8::internal::JSObject and
      * wraps it with DebugInterface::Script.
      * Returns empty local if not called with a valid wrapper of
      * v8::internal::Script.
      */
     static MaybeLocal<Script> Wrap(Isolate* isolate,
                                    v8::Local<v8::Object> script);
 
    private:
     int GetSourcePosition(const Location& location) const;
   };
 
   /**
    * Return array of compiled scripts.
    */
   static void GetLoadedScripts(Isolate* isolate,
                                PersistentValueVector<Script>& scripts);
+
+  /**
+   * Compute the disassembly of a wasm function.
+   * Returns the disassembly string and a list of <byte_offset, line, column>
+   * entries, mapping wasm byte offsets to line and column in the disassembly.
+   * The list is guaranteed to be ordered by the byte_offset.
+   */
+  static std::pair<std::string, std::vector<std::tuple<uint32_t, int, int>>>
+  DisassembleWasmFunction(Isolate* isolate, v8::Local<v8::Object> script,
+                          int function_index);
 };
 
 }  // namespace v8
 
 #endif  // V8_DEBUG_DEBUG_INTERFACE_H_