[clang] [clang-format] Add BreakAfterReturnType option to deprecate AlwaysBreakAfterReturnType. (PR #80827)

[Owen Pan via cfe-commits]

================
@@ -1010,7 +1010,8 @@ struct FormatStyle {
   /// \version 3.7
   DefinitionReturnTypeBreakingStyle AlwaysBreakAfterDefinitionReturnType;
 
-  /// The function declaration return type breaking style to use.
+  /// The function declaration return type breaking style to use.  This
+  /// option is **deprecated** and is retained for backwards compatibility.
   /// \version 3.8
   ReturnTypeBreakingStyle AlwaysBreakAfterReturnType;
----------------
owenca wrote:

+1, but see https://github.com/llvm/llvm-project/pull/80827#issuecomment-1935386091.

https://github.com/llvm/llvm-project/pull/80827