chore: add `TRACE: prefix to json dump to stdout

Author: Chaitanya Kumar

CompiletimeCrashTests/run-compiletime-crash-tests.sh

@@ -48,7 +48,7 @@ for i in "${!test_keys[@]}"; do
 done
 json+="}"
 
-echo $json
+echo "TRACE: ${json}"
 echo $json > compiletime-crash-test-results.json
 
 echo "Finished running all Compiletime Crash tests"