[clang] [clang-format] Option to ignore PP directives (PR #70338)

[Björn Schäpers via cfe-commits]

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@@ -1355,8 +1355,11 @@ unsigned UnwrappedLineFormatter::format(
     bool FixIndentation = (FixBadIndentation || ContinueFormatting) &&
                           Indent != TheLine.First->OriginalColumn;
     bool ShouldFormat = TheLine.Affected || FixIndentation;
-    if (Style.IgnorePPDefinitions && TheLine.Type == LT_PreprocessorDirective)
+    if (Style.IgnorePPDefinitions && TheLine.Type == LT_PreprocessorDirective &&
+        TheLine.getFirstNonComment()->Next->is(tok::pp_define)) {
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HazardyKnusperkeks wrote:

Does `Next` always exist? Is just `#` marked as `LT_PreprocessorDirective`?

https://github.com/llvm/llvm-project/pull/70338