[clang] [clang-format] Change SpaceAfterLogicalNot to enumeration type (PR #150166)

[Björn Schäpers via cfe-commits]

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@@ -4483,13 +4483,32 @@ struct FormatStyle {
   /// \version 3.5
   bool SpaceAfterCStyleCast;
 
-  /// If ``true``, a space is inserted after the logical not operator (``!``).
-  /// \code
-  ///    true:                                  false:
-  ///    ! someExpression();            vs.     !someExpression();
-  /// \endcode
+  /// Space after logical not operator options.
+  enum SpaceAfterNotOptions : int8_t {
+    /// Never insert a space after ``!``.
+    /// \code
+    ///    return !someExpression();
+    ///    return not(a || b);
+    /// \endcode
+    SAN_Never,
+    /// Always insert a space after ``!``.
----------------
HazardyKnusperkeks wrote:

```suggestion
    /// Always insert a space after ``!``, but never after ``not``.
```

https://github.com/llvm/llvm-project/pull/150166