[clang-tools-extra] [clang] [C23] Fix crash with _BitInt running clang-tidy (PR #65889)

[via cfe-commits]

================
@@ -1333,7 +1333,14 @@ void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
   VisitExpr(S);
   S->getValue().Profile(ID);
-  ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
+
+  QualType T = S->getType();
+  if (auto BitIntT = T->getAs<BitIntType>()) {
+    BitIntT->Profile(ID, BitIntT->isSigned(), BitIntT->getNumBits());
----------------
DonatNagyE wrote:

```suggestion
    ID.AddBoolean(true);
    BitIntT->Profile(ID);
```
(1) Add a boolean true to guarantee a difference from the other branch (otherwise we could theoretically get a hash collision in the case when the number of bits in an unsigned BitInt type happens to be equal to the kind of a builtin integer type).
(2) `BitIntType` has two methods named `Profile`; use the non-static one.

https://github.com/llvm/llvm-project/pull/65889