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": "0ca482232f99c40614dc5b994fa8c9f4865fbe72f5a133b02914b5ad",
+    "infile_hash": "94d06fb2844e1060d5df5291c3ccc4bd0e2bc8a8a59651814f0c4f0e",
     "outfile": null,
     "outfile_hash": null,
     "stdout": "asr-structs_05-fa98307.stdout",