[clang] [clang-format]: Fix formatting of if statements with BlockIndent (PR #77699)

[Owen Pan via cfe-commits]

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@@ -768,15 +768,25 @@ void ContinuationIndenter::addTokenOnCurrentLine(LineState &State, bool DryRun,
   // parenthesis by disallowing any further line breaks if there is no line
   // break after the opening parenthesis. Don't break if it doesn't conserve
   // columns.
+  const auto IsOpeningBracket = [&](const FormatToken &Tok) {
+    const auto IsStartOfBracedList = [&]() {
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owenca wrote:

```suggestion
  auto IsOpeningBracket = [&](const FormatToken &Tok) {
    auto IsStartOfBracedList = [&]() {
```

https://github.com/llvm/llvm-project/pull/77699