Improve checks in test/Frontend/ftime-report-template-decl.cpp

Improve checks in test/Frontend/ftime-report-template-decl.cpp

Some buildbots seems to have problems with the CHECKs in
test/Frontend/ftime-report-template-decl.cpp.

I this the problem is that the order in which timers are printed
is based on consumed wall time. So there is no guarantee in which
order the timers are printed.

This patch uses CHECK-DAG instead of CHECK to make the test
case less sensitive to the actual time used by the different
passes.

The (sometimes) failing test cases where introduced in trunk@330571.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@330622 91177308-0d34-0410-b5e6-96231b3b80d8