[clang] [clang-format] Apply SpaceBeforeInheritanceColon to enum underlying types (PR #189011)

[Björn Schäpers via cfe-commits]

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@@ -18632,6 +18632,18 @@ TEST_F(FormatTest, ConfigurableSpaceBeforeColon) {
                InvertedSpaceStyle);
 }
 
+TEST_F(FormatTest, EnumUnderlyingTypeUsesInheritanceColonSpacing) {
+  FormatStyle Style = getLLVMStyle();
+
+  Style.SpaceBeforeInheritanceColon = true;
+  verifyFormat("enum A : int {};", Style);
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HazardyKnusperkeks wrote:

Can you add with and without `typedef` and an enum name?

https://github.com/llvm/llvm-project/pull/189011