Fix the symptom of the regression, by having the CXXConditionDeclExpr not destroy its Decl.
However, the cause still remains: the Decl is linked into the chain of its DeclContext and remains there despite being deleted.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63868 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed