[builtins] Migrate Number predicates and make them optimizable.

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 1285 matching lines @@
     SimpleInstallFunction(prototype, "toPrecision",
                           Builtins::kNumberPrototypeToPrecision, 1, false);
     SimpleInstallFunction(prototype, "toString",
                           Builtins::kNumberPrototypeToString, 1, false);
     SimpleInstallFunction(prototype, "valueOf",
                           Builtins::kNumberPrototypeValueOf, 0, true);
 
     // Install i18n fallback functions.
     SimpleInstallFunction(prototype, "toLocaleString",
                           Builtins::kNumberPrototypeToLocaleString, 0, false);
+
+    // Install the Number functions.
+    SimpleInstallFunction(number_fun, "isFinite", Builtins::kNumberIsFinite, 1,
+                          true);
+    SimpleInstallFunction(number_fun, "isInteger", Builtins::kNumberIsInteger,
+                          1, true);
+    SimpleInstallFunction(number_fun, "isNaN", Builtins::kNumberIsNaN, 1, true);
+    SimpleInstallFunction(number_fun, "isSafeInteger",
+                          Builtins::kNumberIsSafeInteger, 1, true);
   }
 
   {  // --- B o o l e a n ---
     Handle<JSFunction> boolean_fun =
         InstallFunction(global, "Boolean", JS_VALUE_TYPE, JSValue::kSize,
                         isolate->initial_object_prototype(),
                         Builtins::kBooleanConstructor);
     boolean_fun->shared()->DontAdaptArguments();
     boolean_fun->shared()->SetConstructStub(
         *isolate->builtins()->BooleanConstructor_ConstructStub());
@@ skipping 1815 matching lines @@
                         false, kGlobalUnescape);
 
   // Install Global.eval.
   {
     Handle<JSFunction> eval =
         SimpleInstallFunction(global_object, factory()->eval_string(),
                               Builtins::kGlobalEval, 1, false);
     native_context()->set_global_eval_fun(*eval);
   }
 
+  // Install Global.isFinite
+  SimpleInstallFunction(global_object, "isFinite", Builtins::kGlobalIsFinite, 1,
+                        true, kGlobalIsFinite);
+
+  // Install Global.isNaN
+  SimpleInstallFunction(global_object, "isNaN", Builtins::kGlobalIsNaN, 1, true,
+                        kGlobalIsNaN);
+
   // Install Array.prototype.concat
   {
     Handle<JSFunction> array_constructor(native_context()->array_function());
     Handle<JSObject> proto(JSObject::cast(array_constructor->prototype()));
     Handle<JSFunction> concat =
         InstallFunction(proto, "concat", JS_OBJECT_TYPE, JSObject::kHeaderSize,
                         MaybeHandle<JSObject>(), Builtins::kArrayConcat);
 
     // Make sure that Array.prototype.concat appears to be compiled.
     // The code will never be called, but inline caching for call will
@@ skipping 974 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8