[clang] [clang-format] Add AllowBreakBeforeQtProperty option (PR #159909)

[Björn Schäpers via cfe-commits]

================
@@ -33,6 +33,18 @@ const char *getTokenTypeName(TokenType Type) {
   return nullptr;
 }
 
+static SmallVector<StringRef> QtPropertyKeywords = {
----------------
HazardyKnusperkeks wrote:

```suggestion
static constexpr std::array<StringRef> QtPropertyKeywords = {
```
This can be constructed at compile time.

https://github.com/llvm/llvm-project/pull/159909