[clang] [clang-format] Fix parsing of goto labels (PR #197538)

[Björn Schäpers via cfe-commits]

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@@ -3168,6 +3173,25 @@ TEST_F(FormatTest, FormatsLabels) {
                "    g();\n"
                "  }\n"
                "}");
+  verifyFormat("void func() {\n"
+               "label:\n"
+               "  {\n"
+               "    // Block\n"
+               "  }\n"
+               "}");
+  verifyFormat("void func() {\n"
+               "label: // Comment\n"
+               "  {\n"
+               "    // Block\n"
+               "  }\n"
+               "}");
+  verifyFormat("void func() {\n"
+               "label:\n"
+               "  // Comment\n"
+               "  {\n"
+               "    // Block\n"
+               "  }\n"
+               "}");
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HazardyKnusperkeks wrote:

```suggestion
```

https://github.com/llvm/llvm-project/pull/197538