[clang-tests] Changed relative paths to absolute paths in run command for annotate-macro-args.m, get-cursor-macro-args.m, import_self.c.

This fixes make check-all failures when make -C is used to run the tests.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164978 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed