[clang] [analyzer] Introduce the check::BlockEntrance checker callback (PR #140924)

[Balazs Benics via cfe-commits]

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@@ -548,6 +564,8 @@ class CheckerProgramPointTag : public SimpleProgramPointTag {
 template <typename CHECK1, typename... CHECKs>
 class Checker : public CHECK1, public CHECKs..., public CheckerBase {
 public:
+  using BlockEntrance = clang::BlockEntrance;
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steakhal wrote:

Dont worry.

https://github.com/llvm/llvm-project/pull/140924