Move the "->" to "." fixit from r186128 into a separate note since
recovery is not attempted with the fixit. Also move the associated test
case from FixIt/fixit.cpp to SemaCXX/member-expr.cpp since the fixit is
no longer automatically applied.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186342 91177308-0d34-0410-b5e6-96231b3b80d8