[wasm] Allocate a single script per wasm module

src/objects.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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 #include <memory>
 
@@ skipping 7036 matching lines @@
 
   // [flags]: Holds an exciting bitfield.
   DECL_INT_ACCESSORS(flags)
 
   // [source_url]: sourceURL from magic comment
   DECL_ACCESSORS(source_url, Object)
 
   // [source_mapping_url]: sourceMappingURL magic comment
   DECL_ACCESSORS(source_mapping_url, Object)
 
-  // [wasm_instance]: the wasm instance this script belongs to.
+  // [wasm_compiled_module]: the compiled wasm module this script belongs to.
   // This must only be called if the type of this script is TYPE_WASM.
-  DECL_ACCESSORS(wasm_instance, JSObject)
-
-  // [wasm_function_index]: the wasm function index this script belongs to.
-  // This must only be called if the type of this script is TYPE_WASM.
-  DECL_INT_ACCESSORS(wasm_function_index)
+  DECL_ACCESSORS(wasm_compiled_module, Object)
 
   // [compilation_type]: how the the script was compiled. Encoded in the
   // 'flags' field.
   inline CompilationType compilation_type();
   inline void set_compilation_type(CompilationType type);
 
   // [compilation_state]: determines whether the script has already been
   // compiled. Encoded in the 'flags' field.
   inline CompilationState compilation_state();
   inline void set_compilation_state(CompilationState state);
@@ skipping 4747 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_