[clang] [clang-format] Support of TableGen formatting. (PR #76059)

[Emilia Kond via cfe-commits]

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@@ -111,6 +111,9 @@ const tooling::Replacements &WhitespaceManager::generateReplacements() {
   alignConsecutiveDeclarations();
   alignConsecutiveBitFields();
   alignConsecutiveAssignments();
+  alignConsecutiveTableGenCondOperatorColons();
+  AlignConsecutiveTableGenBreakingDAGArgColons();
+  alignConsecutiveTableGenDefinition();
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rymiel wrote:

Shouldn't these replacements be guarded behind an `isTableGen`? At the very least, `alignConsecutiveTableGenDefinition` aligns on TT_InheritanceColon and that can appear in non-tablegen code too

https://github.com/llvm/llvm-project/pull/76059