[clang] [clang][analyzer] Add ReportInC99AndEarlier option to DeprecatedOrUnsafeBuf… (PR #168704)

[Balázs Benics via cfe-commits]

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@@ -1113,5 +1116,20 @@ REGISTER_CHECKER(rand)
 REGISTER_CHECKER(vfork)
 REGISTER_CHECKER(FloatLoopCounter)
 REGISTER_CHECKER(UncheckedReturn)
-REGISTER_CHECKER(DeprecatedOrUnsafeBufferHandling)
+
+void ento::registerDeprecatedOrUnsafeBufferHandling(CheckerManager &mgr) {
+  SecuritySyntaxChecker *checker = mgr.getChecker<SecuritySyntaxChecker>();
+  checker->filter.check_DeprecatedOrUnsafeBufferHandling = true;
+  checker->filter.checkName_DeprecatedOrUnsafeBufferHandling =
+      mgr.getCurrentCheckerName();
+  checker->filter.allowDeprecatedOrUnsafeBufferHandlingWithoutC11 =
+      mgr.getAnalyzerOptions().getCheckerBooleanOption(
+          mgr.getCurrentCheckerName(), "ReportInC99AndEarlier");
+}
+
+bool ento::shouldRegisterDeprecatedOrUnsafeBufferHandling(
+    const CheckerManager &mgr) {
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steakhal wrote:

```suggestion
    const CheckerManager &) {
```

https://github.com/llvm/llvm-project/pull/168704