Drop latin-1 check from BasicJsonStringifier::DoNotEscape

src/json-stringifier.h

Index: src/json-stringifier.h
diff --git a/src/json-stringifier.h b/src/json-stringifier.h
index cec98443a5c628cb103c56e27aec2db4e35a4fb6..55f435018cb06193c96732c8308e0aa62f6de09d 100644
--- a/src/json-stringifier.h
+++ b/src/json-stringifier.h
@@ -206,8 +206,39 @@ const char* const BasicJsonStringifier::JsonEscapeTable =
     "p\0      q\0      r\0      s\0      "
     "t\0      u\0      v\0      w\0      "
     "x\0      y\0      z\0      {\0      "
-    "|\0      }\0      ~\0      \177\0      ";
-
+    "|\0      }\0      ~\0      \177\0      "
+    "\200\0      \201\0      \202\0      \203\0      "
+    "\204\0      \205\0      \206\0      \207\0      "
+    "\210\0      \211\0      \212\0      \213\0      "
+    "\214\0      \215\0      \216\0      \217\0      "
+    "\220\0      \221\0      \222\0      \223\0      "
+    "\224\0      \225\0      \226\0      \227\0      "
+    "\230\0      \231\0      \232\0      \233\0      "
+    "\234\0      \235\0      \236\0      \237\0      "
+    "\240\0      \241\0      \242\0      \243\0      "
+    "\244\0      \245\0      \246\0      \247\0      "
+    "\250\0      \251\0      \252\0      \253\0      "
+    "\254\0      \255\0      \256\0      \257\0      "
+    "\260\0      \261\0      \262\0      \263\0      "
+    "\264\0      \265\0      \266\0      \267\0      "
+    "\270\0      \271\0      \272\0      \273\0      "
+    "\274\0      \275\0      \276\0      \277\0      "
+    "\300\0      \301\0      \302\0      \303\0      "
+    "\304\0      \305\0      \306\0      \307\0      "
+    "\310\0      \311\0      \312\0      \313\0      "
+    "\314\0      \315\0      \316\0      \317\0      "
+    "\320\0      \321\0      \322\0      \323\0      "
+    "\324\0      \325\0      \326\0      \327\0      "
+    "\330\0      \331\0      \332\0      \333\0      "
+    "\334\0      \335\0      \336\0      \337\0      "
+    "\340\0      \341\0      \342\0      \343\0      "
+    "\344\0      \345\0      \346\0      \347\0      "
+    "\350\0      \351\0      \352\0      \353\0      "
+    "\354\0      \355\0      \356\0      \357\0      "
+    "\360\0      \361\0      \362\0      \363\0      "
+    "\364\0      \365\0      \366\0      \367\0      "
+    "\370\0      \371\0      \372\0      \373\0      "
+    "\374\0      \375\0      \376\0      \377\0      ";
 
 BasicJsonStringifier::BasicJsonStringifier(Isolate* isolate)
     : isolate_(isolate), current_index_(0), is_ascii_(true) {
@@ -698,9 +729,15 @@ void BasicJsonStringifier::SerializeString_(Handle<String> string) {
 }
 
 
-template <typename Char>
-bool BasicJsonStringifier::DoNotEscape(Char c) {
-  return (c >= 0x80) || (c >= '#' && c <= '~' && c != '\\');
+template <>
+bool BasicJsonStringifier::DoNotEscape(uint8_t c) {
+  return c >= '#' && c <= '~' && c != '\\';
+}
+
+
+template <>
+bool BasicJsonStringifier::DoNotEscape(uint16_t c) {
+  return c >= '#' && c != '\\' && c != 0x7f;
 }