[BFCL] Fix Language-specific Hint Implementation (#1241)

Fix #1216. 
This PR addresses the issue that the language-specific hint
implementation incorrectly applies the Python hint to Java and
JavaScript test entries.

Co-authored-by: Shishir Patil <30296397+ShishirPatil@users.noreply.github.com>

Author: HuanzhiMao

berkeley-function-call-leaderboard/bfcl_eval/utils.py

@@ -611,9 +611,9 @@ def is_empty_output(decoded_output):
 
 
 def _get_language_specific_hint(test_category):
-    if test_category == "java":
+    if is_java(test_category):
         return " Note that the provided function is in Java 8 SDK syntax."
-    elif test_category == "javascript":
+    elif is_js(test_category):
         return " Note that the provided function is in JavaScript syntax."
     else:
         return " Note that the provided function is in Python 3 syntax."