Fix CQS signal modernize-raw-string-literal in fbcode/cinderx/Jit

Reviewed By: DinoV

Differential Revision: D91869780

fbshipit-source-id: 82a9a4a01f993533dd589d53c4f5faca6fdfb30e

Author: generatedunixname1587093422349604

cinderx/Jit/hir/hir_stats.cpp

@@ -62,7 +62,7 @@ void HIRStats::Stats::dump(std::string_view function_name) const {
   };
 
   std::string result = fmt::format(
-      "{{\"function\": \"{}\", \"instructions\": {{",
+      R"({{"function": "{}", "instructions": {{)",
       escapeJsonString(function_name));
   bool first = true;
   for (const auto& [name, count] : instrs) {