GitLab

I briefly thought I'd fixed this, but I haven't.  So it stays broken.

This makes things more robust when running with threads

into their component parts
    if_compiler_type
    expect_fail
    expect_broken

Its really a testsuite-framework bug that these mentions of 'opt' have
lingered so long.  They should have been rejected as a non-existent way.

Now instead of saying, e.g.
    namebase_if_compiler_lt('ghc','6.9', 'foo-6.8')
you say
    if_compiler_lt('ghc','6.9', namebase('foo-6.8'))