[clang] [llvm] Reapply "[analyzer] Accept C library functions from the `std` namespace" again (PR #85791)

[via llvm-commits]

=?utf-8?q?Donát?= Nagy <donat.nagy at ericsson.com>,
=?utf-8?q?Donát?= Nagy <donat.nagy at ericsson.com>,NagyDonat
 <donat.nagy at ericsson.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/85791 at github.com>


================
@@ -1435,9 +1440,17 @@ void MallocChecker::checkGMallocN0(const CallEvent &Call,
   C.addTransition(State);
 }
 
+static bool isFromStdNamespace(const CallEvent &Call) {
+  const Decl *FD = Call.getDecl();
+  assert(FD && "a CallDescription cannot match a call without a Decl");
+  return (FD->isInStdNamespace());
----------------
NagyDonat wrote:

```suggestion
  return FD->isInStdNamespace();
```

https://github.com/llvm/llvm-project/pull/85791