[clang] [clang-format] Allow custom pointer/ref alignment in return types (PR #169160)

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@@ -5824,34 +5900,111 @@ the configuration (without a prefix: ``Auto``).
 
 .. _ReferenceAlignment:
 
-**ReferenceAlignment** (``ReferenceAlignmentStyle``) :versionbadge:`clang-format 13` :ref:`¶ <ReferenceAlignment>`
+**ReferenceAlignment** (``ReferenceAlignmentOptions``) :versionbadge:`clang-format 13` :ref:`¶ <ReferenceAlignment>`
   Reference alignment style (overrides ``PointerAlignment`` for references).
 
-  Possible values:
+  Acceptable values (configured as a single string or with suboptions):
+  * ``Pointer``
+  * ``Left``
+  * ``Right``
+  * ``Middle``
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mydeveloperday wrote:

Ditto comment above

https://github.com/llvm/llvm-project/pull/169160