Move test to a more appropriate place.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166078 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CXX/ast-print.cpp b/test/SemaCXX/ast-print.cpp
similarity index 100%
rename from test/CXX/ast-print.cpp
rename to test/SemaCXX/ast-print.cpp