Don't erroneously put FunctionDecls into CXXRecordDecls
if we didn't want to put in a CXXConstructorDecl.  This
prevents malformed classes (i.e., classes with regular C
functions as members) from being generated from type
information (and fixes a crash in the test suite).

<rdar://problem/13550765>


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@179136 91177308-0d34-0410-b5e6-96231b3b80d8