[regexp] Port RegExp.prototype.exec to TurboFan

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 2852e8f4152d9665d9d2eda137f2e12e6b7dff40..2adc56d9e21e68ca73533e1d334eefe186496c7c 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1635,9 +1635,11 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
 
   {  // -- R e g E x p
     // Builtin functions for RegExp.prototype.
-    Handle<JSFunction> regexp_fun = InstallFunction(
-        global, "RegExp", JS_REGEXP_TYPE, JSRegExp::kSize,
-        isolate->initial_object_prototype(), Builtins::kIllegal);
+    Handle<JSObject> prototype =
+        factory->NewJSObject(isolate->object_function(), TENURED);
+    Handle<JSFunction> regexp_fun =
+        InstallFunction(global, "RegExp", JS_REGEXP_TYPE, JSRegExp::kSize,
+                        prototype, Builtins::kIllegal);
     InstallWithIntrinsicDefaultProto(isolate, regexp_fun,
                                      Context::REGEXP_FUNCTION_INDEX);
     regexp_fun->shared()->SetConstructStub(
@@ -1663,6 +1665,15 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
     initial_map->set_unused_property_fields(0);
     initial_map->set_instance_size(initial_map->instance_size() +
                                    num_fields * kPointerSize);
+
+    // RegExp.prototype setup.
+
+    // Install the "constructor" property on the {prototype}.
+    JSObject::AddProperty(prototype, factory->constructor_string(), regexp_fun,
+                          DONT_ENUM);
+
+    SimpleInstallFunction(prototype, "exec", Builtins::kRegExpPrototypeExec, 1,
+                          true, DONT_ENUM);
   }
 
   {  // -- E r r o r