[inspector] Introduce debug::WasmScript

src/debug/debug-interface.h

Index: src/debug/debug-interface.h
diff --git a/src/debug/debug-interface.h b/src/debug/debug-interface.h
index 11172eb03dddfd3d39d2bf467084d0bfaf61a934..3595cd6b95d3e273ef97e6cc61d242c9f3218413 100644
--- a/src/debug/debug-interface.h
+++ b/src/debug/debug-interface.h
@@ -198,18 +198,27 @@ class DebugInterface {
     int GetSourcePosition(const Location& location) const;
   };
 
+  // Specialization for wasm Scripts.
+  class WasmScript : public Script {
+   public:
+    static WasmScript* Cast(Script* script);
+
+    int NumFunction() const;
+    int NumImportedFunction() const;
+
+    /**
+     * 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.
+     */
+    std::pair<std::string, std::vector<std::tuple<uint32_t, int, int>>>
+    DisassembleFunction(int function_index);
+  };
+
   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);
   static MaybeLocal<UnboundScript> CompileInspectorScript(Isolate* isolate,
                                                           Local<String> source);
 };