[clang] [clang-format] Add new option: WrapNamespaceBodyWithNewlines (PR #106145)

[via cfe-commits]

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@@ -1493,6 +1511,18 @@ static auto computeNewlines(const AnnotatedLine &Line,
     Newlines = 1;
   }
 
+  // Insert empty line after "{" that opens namespace scope
+  if (Style.WrapNamespaceBodyWithNewlines &&
+      LineStartsNamespaceScope(&Line, PreviousLine, PrevPrevLine)) {
+    Newlines = 2;
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dmasloff wrote:

I have not tested it yet, probably will add test about this in pr update, but since it's going later then all usings of `Style.MaxEmptyLinesToKeep` it overrides behavior of this option in namespaces, which seems reasonable. Could change it to `Newlines = std::min(2, Style.MaxEmptyLinesToKeep)` in `Leave` option if moving to proposed enum and existing`Newlines = 2` can be used for `Always`?

https://github.com/llvm/llvm-project/pull/106145