By "simple" I mean any non-globbing suite/case ids.
Non-globbing suite/case ids can be filtered early in the test_runner.
But globbing ids require, surprise, globbing, which is currently handled
by test/bench.py.
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This greatly speeds up valgrind testing of specific suites/cases,
otherwise things get bogged down during the initial --list-cases due to
the sheer number of test permutations we've accumulated.
Maybe we shouldn't be running the initial --list-cases under Valgrind,
but oh well. This mostly solves the problem without too many changes.
Christopher Haster
d37785cc9b