[llvm] [lit] Migrate lit to ProcessPoolExecutor (PR #202681)

[Aiden Grossman via llvm-commits]

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@@ -366,7 +373,7 @@ def print_summary(total_tests, tests_by_code, quiet, elapsed):
     max_label_len = max(len(label) for label, _ in groups)
     max_count_len = max(len(str(count)) for _, count in groups)
 
-    for (label, count) in groups:
+    for label, count in groups:
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boomanaiden154 wrote:

Same here regarding formatting changes.

https://github.com/llvm/llvm-project/pull/202681