Use -fexceptions for test_rust_gxx_personality_v0

IIUC, the original issue was about Rust referencing this symbol in panic=unwind mode, which is using Emscripten's exceptions, but the test was verifying that the symbol exists even with exceptions disabled.

Now that the two modes are better separated, the test needs to be updated.

Author: RReverser

test/test_other.py

@@ -12999,7 +12999,7 @@ def test_rust_gxx_personality_v0(self):
           return 0;
         }
       }
-    ''', assert_returncode=NON_ZERO)
+    ''', assert_returncode=NON_ZERO, emcc_args=['-fexceptions'])
 
   def test_bigint64array_polyfill(self):
     bigint64array = read_file(path_from_root('src/polyfill/bigint64array.js'))