Implement ScriptPromise and ScriptFunction

Source/bindings/bindings.gypi

Index: Source/bindings/bindings.gypi
diff --git a/Source/bindings/bindings.gypi b/Source/bindings/bindings.gypi
index 13a3dd776a94fea708f8ab850a6246dd0c6885ad..a67cb5614ec5288db1bdf65ee4127a85f93ea5f5 100644
--- a/Source/bindings/bindings.gypi
+++ b/Source/bindings/bindings.gypi
@@ -48,6 +48,7 @@
             'v8/ScriptDebugServer.h',
             'v8/ScriptEventListener.cpp',
             'v8/ScriptEventListener.h',
+            'v8/ScriptFunction.h',
             'v8/ScriptFunctionCall.cpp',
             'v8/ScriptFunctionCall.h',
             'v8/ScriptGCEvent.cpp',
@@ -60,6 +61,7 @@
             'v8/ScriptObject.h',
             'v8/ScriptProfiler.cpp',
             'v8/ScriptProfiler.h',
+            'v8/ScriptPromise.h',
             'v8/ScriptPromiseResolver.cpp',
             'v8/ScriptPromiseResolver.h',
             'v8/ScriptScope.cpp',
@@ -250,6 +252,7 @@
         'bindings_unittest_files': [
             'v8/IDBBindingUtilitiesTest.cpp',
             'v8/ScriptPromiseResolverTest.cpp',
+            'v8/ScriptPromiseTest.cpp',
         ],
         'conditions': [
             ['OS=="win" and buildtype=="Official"', {