[llvm] [LLVM] Automatically strip `-fno-lifetime-dse` from compile_commands.json (PR #124623)

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darker --check --diff -r 7b1becd940cb93f8b63c9872e1af7431dea353d1...06c18fcc960329d79038a555dbb039c3141cc29d llvm/utils/merge-json.py
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View the diff from darker here.
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``````````diff
--- merge-json.py	2025-01-27 20:48:00.000000 +0000
+++ merge-json.py	2025-01-27 20:56:35.402124 +0000
@@ -38,11 +38,11 @@
     # LLVM passes this argument by default but it is not supported by clang,
     # causing annoying errors in the generated compile_commands.json file.
     # Remove it here before we deduplicate the entries.
     for entry in merged_data:
         if isinstance(entry, dict) and "command" in entry:
-            entry["command"] = entry["command"].replace("-fno-lifetime-dse ", "");
+            entry["command"] = entry["command"].replace("-fno-lifetime-dse ", "")
 
     # Deduplicate by converting each entry to a tuple of sorted key-value pairs
     unique_data = list({json.dumps(entry, sort_keys=True) for entry in merged_data})
     unique_data = [json.loads(entry) for entry in unique_data]
 

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https://github.com/llvm/llvm-project/pull/124623