[clang] [polly] [clang-format] Add AllowShortType and ExceptShortType options for AlwaysBreakAfterReturnType. (PR #78011)

[Owen Pan via llvm-commits]

================
@@ -922,8 +922,39 @@ struct FormatStyle {
     ///   };
     ///   int f();
     ///   int f() { return 1; }
+    ///   int LongName::
+    ///       AnotherLongName();
     /// \endcode
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owenca wrote:

Change the comments (lines 917-927) to something like the following:
```
    /// This is **deprecated**. See ``Automatic`` below.
```

https://github.com/llvm/llvm-project/pull/78011