[regexp] Migrate constructor and compile to CSA

src/bootstrapper.cc

 // Copyright 2014 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.
 
 #include "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/base/ieee754.h"
 #include "src/code-stubs.h"
@@ skipping 1851 matching lines @@
     // Builtin functions for RegExp.prototype.
     Handle<JSObject> prototype =
         factory->NewJSObject(isolate->object_function(), TENURED);
     Handle<JSFunction> regexp_fun =
         InstallFunction(global, "RegExp", JS_REGEXP_TYPE, JSRegExp::kSize,
                         prototype, Builtins::kRegExpConstructor);
     InstallWithIntrinsicDefaultProto(isolate, regexp_fun,
                                      Context::REGEXP_FUNCTION_INDEX);
 
     Handle<SharedFunctionInfo> shared(regexp_fun->shared(), isolate);
-    shared->SetConstructStub(*isolate->builtins()->RegExpConstructor());
+    shared->SetConstructStub(*isolate->builtins()->JSBuiltinsConstructStub());
     shared->set_instance_class_name(isolate->heap()->RegExp_string());
-    shared->DontAdaptArguments();
+    shared->set_internal_formal_parameter_count(2);
     shared->set_length(2);
 
     {
       // RegExp.prototype setup.
 
       // Install the "constructor" property on the {prototype}.
       JSObject::AddProperty(prototype, factory->constructor_string(),
                             regexp_fun, DONT_ENUM);
 
       {
@@ skipping 12 matching lines @@
       SimpleInstallGetter(prototype, factory->multiline_string(),
                           Builtins::kRegExpPrototypeMultilineGetter, true);
       SimpleInstallGetter(prototype, factory->source_string(),
                           Builtins::kRegExpPrototypeSourceGetter, true);
       SimpleInstallGetter(prototype, factory->sticky_string(),
                           Builtins::kRegExpPrototypeStickyGetter, true);
       SimpleInstallGetter(prototype, factory->unicode_string(),
                           Builtins::kRegExpPrototypeUnicodeGetter, true);
 
       SimpleInstallFunction(prototype, "compile",
-                            Builtins::kRegExpPrototypeCompile, 2, false,
+                            Builtins::kRegExpPrototypeCompile, 2, true,
                             DONT_ENUM);
       SimpleInstallFunction(prototype, factory->toString_string(),
                             Builtins::kRegExpPrototypeToString, 0, false,
                             DONT_ENUM);
       SimpleInstallFunction(prototype, "test", Builtins::kRegExpPrototypeTest,
                             1, true, DONT_ENUM);
 
       {
         Handle<JSFunction> fun = SimpleCreateFunction(
             isolate, factory->InternalizeUtf8String("[Symbol.match]"),
@@ skipping 2661 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8