[index] References to fields from template instantiations should refer to
fields in base templates

rdar://32197158

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@303068 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit 96ab5e60807c5fd92e00c5ed8e9e268cb687f4fc)
2 files changed