TEST: Update reference tests

Author: ubaidsk

tests/reference/asr-structs_05-fa98307.json

@@ -2,7 +2,7 @@
     "basename": "asr-structs_05-fa98307",
     "cmd": "lpython --show-asr --no-color {infile} -o {outfile}",
     "infile": "tests/../integration_tests/structs_05.py",
-    "infile_hash": "5c587158fe09782d15aa8f5f9c24468c62795e9f537a9eb439d8e8a4",
+    "infile_hash": "ef1037b0936a63be679efd366920a94463900e80630a070ba440aa78",
     "outfile": null,
     "outfile_hash": null,
     "stdout": "asr-structs_05-fa98307.stdout",