[wasm] Add GenericJSToWasmWrapper to the list of executable builtins

Ensure that a valid off-heap trampoline is created for the
GenericJSToWasmWrapper builtin by adding it to the list of executable
builtins.

R=ahaas@chromium.org
CC=​evih@chromium.org

Bug: v8:10701
Change-Id: I49b8144237aca20f5f663c7b32810a16f715ad5f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2438415
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70218}

src/builtins/builtins.cc

@@ -484,6 +484,7 @@ bool Builtins::CodeObjectIsExecutable(int builtin_index) {
     case Builtins::kArgumentsAdaptorTrampoline:
     case Builtins::kHandleApiCall:
     case Builtins::kInstantiateAsmJs:
+    case Builtins::kGenericJSToWasmWrapper:
 
     // TODO(delphick): Remove this when calls to it have the trampoline inlined
     // or are converted to use kCallBuiltinPointer.

test/mjsunit/wasm/generic-wrapper.js

@@ -730,6 +730,23 @@ let kSig_f_iiliiiffddlifffdi = makeSig([kWasmI32, kWasmI32, kWasmI64, kWasmI32,
   assertEquals(360, x);
 })();
 
+(function testCallFromOptimizedFunction() {
+  print(arguments.callee.name);
+  const builder = new WasmModuleBuilder();
+  builder.addFunction('wasm_fn', kSig_v_v).addBody([
+      kExprNop,
+  ]).exportFunc();
+
+  instance = builder.instantiate();
+  function js_caller() {
+    return instance.exports.wasm_fn();
+  }
+  %PrepareFunctionForOptimization(js_caller);
+  js_caller();
+  %OptimizeFunctionOnNextCall(js_caller);
+  js_caller();
+})();
+
 (function Regression1130385() {
   print(arguments.callee.name);
   let builder = new WasmModuleBuilder();