[clang] [clang-format] fix aligning inheritance lists and binary operator operands with UT_AlignWithSpaces (PR #189218)

[Björn Schäpers via cfe-commits]

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@@ -8435,6 +8435,20 @@ TEST_F(FormatTest, BreakConstructorInitializersAfterColon) {
       "  : public aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
       "    public bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb {};",
       Style);
+  FormatStyle Tabbed = getLLVMStyleWithColumns(42);
+  Tabbed.IndentWidth = 4;
+  Tabbed.TabWidth = 4;
+  Tabbed.UseTab = FormatStyle::UT_AlignWithSpaces;
+  verifyFormat("class Foo : public aaaaaaaaa,\n"
+               "            protected bbbbbbbbb,\n"
+               "            private cccccccccc,\n"
+               "            dddddddddd {};",
+               Tabbed);
+  verifyFormat("struct S {\n"
+               "\tclass Foo : public aaaaaaaaa,\n"
+               "\t            private bbbbbbbbb {};\n"
+               "};",
+               Tabbed);
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HazardyKnusperkeks wrote:

Why do you think it should not _can_ break after the colon? When the line would be too long it has to break, to try to obey the `ColumnLimit`.

https://github.com/llvm/llvm-project/pull/189218