[wasm] Store the function_index in the js-to-wasm wrapper instead of the export index

src/wasm/wasm-module.cc

Index: src/wasm/wasm-module.cc
diff --git a/src/wasm/wasm-module.cc b/src/wasm/wasm-module.cc
index aa385f824e6917b38815aadf8d047c4fa5964ea4..49107c86913ef2821d4d1717024a4a415426a591 100644
--- a/src/wasm/wasm-module.cc
+++ b/src/wasm/wasm-module.cc
@@ -1644,9 +1644,9 @@ class WasmInstanceBuilder {
             // Wrap the exported code as a JSFunction.
             Handle<Code> export_code =
                 code_table->GetValueChecked<Code>(isolate_, export_index);
-            js_function =
-                WrapExportCodeAsJSFunction(isolate_, export_code, name,
-                                           function.sig, func_index, instance);
+            js_function = WrapExportCodeAsJSFunction(
+                isolate_, export_code, name, function.sig, function.func_index,
+                instance);
             js_wrappers_[exp.index] = js_function;
           }
           desc.set_value(js_function);