[clang] [clang-format] Support fine-grained alignment of variable declarations (PR #160270)

[Gedare Bloom via cfe-commits]

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@@ -256,6 +270,20 @@ struct FormatStyle {
     ///   int (*f)();
     /// \endcode
     bool AlignFunctionPointers;
+    /// Only for ``AlignConsecutiveDeclarations``. Whether class/struct member
+    /// variable declarations are aligned.
+    /// \code
+    ///   true:
+    ///   unsigned int member1;
+    ///   float        member2;
+    ///   size_t       member3;
+    ///
+    ///   false:
+    ///   unsigned int member1;
+    ///   float member2;
+    ///   size_t member3;
+    /// \endcode
+    bool AlignMemberVariableDeclarations;
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gedare wrote:

And similarly `AlignMemberVariables`.

https://github.com/llvm/llvm-project/pull/160270