[clang] [clang][ASTImporter] Fix of crash at ConstraintSatisfaction import (PR #197407)

[Balázs Benics via cfe-commits]

================
@@ -0,0 +1,25 @@
+// RUN: rm -rf %t && mkdir %t
+// RUN: mkdir -p %t/ctudir
+// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -std=c++20 \
+// RUN:   -emit-pch -o %t/ctudir/constraintsatisfaction-import.cpp.ast %S/Inputs/constraintsatisfaction-import.cpp
----------------
steakhal wrote:

This file could also come here.

https://github.com/llvm/llvm-project/pull/197407