[wasm] cloning compiled module before instantiation

src/compiler/wasm-compiler.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_COMPILER_WASM_COMPILER_H_
 #define V8_COMPILER_WASM_COMPILER_H_
 
 // Clients of this interface shouldn't depend on lots of compiler internals.
 // Do not include anything from src/compiler here!
 #include "src/compiler.h"
@@ skipping 65 matching lines @@
   bool ok_;
 };
 
 // Wraps a JS function, producing a code object that can be called from WASM.
 Handle<Code> CompileWasmToJSWrapper(Isolate* isolate,
                                     Handle<JSFunction> function,
                                     wasm::FunctionSig* sig, uint32_t index,
                                     Handle<String> import_module,
                                     MaybeHandle<String> import_function);
 
-// Wraps a given wasm code object, producing a JSFunction that can be called
-// from JavaScript.
-Handle<JSFunction> CompileJSToWasmWrapper(Isolate* isolate,
-                                          wasm::ModuleEnv* module,
-                                          Handle<String> name,
-                                          Handle<Code> wasm_code,
-                                          uint32_t index);
+// Wraps a given wasm code object, producing a code object.
+Handle<Code> CompileJSToWasmWrapper(Isolate* isolate, wasm::ModuleEnv* module,
+                                    Handle<Code> wasm_code, uint32_t index);
 
 // Abstracts details of building TurboFan graph nodes for WASM to separate
 // the WASM decoder from the internal details of TurboFan.
 class WasmTrapHelper;
 class WasmGraphBuilder {
  public:
   WasmGraphBuilder(
       Zone* z, JSGraph* g, wasm::FunctionSig* function_signature,
       compiler::SourcePositionTable* source_position_table = nullptr);
 
@@ skipping 244 matching lines @@
     Node** buf = Buffer(new_count);
     if (buf != buffer) memcpy(buf, buffer, old_count * sizeof(Node*));
     return buf;
   }
 };
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_WASM_COMPILER_H_