[clang] [clang-format] Fix mismatched break in BlockIndent (PR #124998)

[Owen Pan via cfe-commits]

================
@@ -9608,6 +9608,10 @@ TEST_F(FormatTest, AlignsAfterOpenBracket) {
       "    \"a aaaaaaa aaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaa aaaaaaaaaaaaa\"\n"
       ");",
       Style);
+  verifyFormat("aaaaaaaaaaaaaaaaaaaaaaa(\n"
+               "    &bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n"
----------------
owenca wrote:

```suggestion
               "    &bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n"
```
Better still, trim another 20 `b`s and move the test case to the end of the unit test.

https://github.com/llvm/llvm-project/pull/124998