Reland "Handlify GetProperty."

src/i18n.cc

Index: src/i18n.cc
diff --git a/src/i18n.cc b/src/i18n.cc
index 910414fa5bc1a6606c6c67696493bc49b3852c55..bfe420057916a58239d89b90479dc7cca351ccc2 100644
--- a/src/i18n.cc
+++ b/src/i18n.cc
@@ -58,7 +58,7 @@ bool ExtractStringSetting(Isolate* isolate,
                           const char* key,
                           icu::UnicodeString* setting) {
   Handle<String> str = isolate->factory()->NewStringFromAscii(CStrVector(key));
-  Handle<Object> object = Object::GetProperty(options, str);
+  Handle<Object> object = Object::GetProperty(options, str).ToHandleChecked();
   if (object->IsString()) {
     v8::String::Utf8Value utf8_string(
         v8::Utils::ToLocal(Handle<String>::cast(object)));
@@ -74,7 +74,7 @@ bool ExtractIntegerSetting(Isolate* isolate,
                            const char* key,
                            int32_t* value) {
   Handle<String> str = isolate->factory()->NewStringFromAscii(CStrVector(key));
-  Handle<Object> object = Object::GetProperty(options, str);
+  Handle<Object> object = Object::GetProperty(options, str).ToHandleChecked();
   if (object->IsNumber()) {
     object->ToInt32(value);
     return true;
@@ -88,7 +88,7 @@ bool ExtractBooleanSetting(Isolate* isolate,
                            const char* key,
                            bool* value) {
   Handle<String> str = isolate->factory()->NewStringFromAscii(CStrVector(key));
-  Handle<Object> object = Object::GetProperty(options, str);
+  Handle<Object> object = Object::GetProperty(options, str).ToHandleChecked();
   if (object->IsBoolean()) {
     *value = object->BooleanValue();
     return true;