[llvm] [test] Align behavior of interrupts.test on different platforms (PR #68556)

[James Henderson via llvm-commits]

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@@ -34,8 +35,8 @@ def run_wrapper():
                                 startupinfo=startupinfo,
                                 creationflags=subprocess.CREATE_NEW_CONSOLE)
     else:
-        proc = subprocess.Popen(args,
-                                stderr=subprocess.PIPE)
+        proc = subprocess.Popen(args, stderr=sys.stderr)
+        proc.wait()
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jh7370 wrote:

Are you sure `wait` is the right thing you want? Could we simplify both this and the line a couple of lines above to `subprocess.run`?

https://github.com/llvm/llvm-project/pull/68556