[clang] [clang] On Windows, silence warning in `WhitespaceManager` when build… (PR #187938)

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@@ -636,6 +637,8 @@ static unsigned AlignTokens(const FormatStyle &Style, F &&Matches,
       case AlignStrategy::Macro:
       case AlignStrategy::Normal:
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owenca wrote:

```suggestion
      default: // AlignStrategy::Macro and AlignStrategy::Normal:
```

https://github.com/llvm/llvm-project/pull/187938