[llvm] [llvm][lit] fix writing results to file (PR #130845)

[James Henderson via llvm-commits]

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@@ -286,7 +286,8 @@ def _write_results_to_file(self, tests, elapsed, file):
 
         json_data = {"traceEvents": events}
 
-        json.dump(json_data, time_trace_file, indent=2, sort_keys=True)
+        with open(self.output_file, "w") as time_trace_file:
+            json.dump(json_data, time_trace_file, indent=2, sort_keys=True)
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jh7370 wrote:

Actually, I don't think this is the right change: see my out-of-line comment for more details. I think the correct change is to use `file` not `time_trace_file` here.

https://github.com/llvm/llvm-project/pull/130845