Fix crash with -serialize (reported to cfe-dev). The issue was 
essentially that we were destroying the declarations twice.

(Note that we don't use -serialize directly in the testsuite, only 
SerializeTest.)



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51768 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed