message: rewrite opt cmds: fix crash with a single verify
diff: @@ -37,7 +37,7 @@ def wrap(args):
  "loop-mssa" : ["function"],
  }
  - firstpass = None
  + firstpass = ''
  type = None
  skip = ['verify', 'invalidate<all>']
  @@ -139,15 +139,16 @@ else:
  ('cgscc(devirt<4>(inline))', 'cgscc(devirt<4>(inline))'),
  ('devirt<1>(inline,function(gvn))', 'cgscc(devirt<1>(inline,function(gvn)))'),
  ('require<opt-remark-emit>,loop(loop-unroll-full)', 'function(require<opt-remark-emit>,loop(loop-unroll-full))'),
  - ('invalidate<domtree>,early-cse-memssa', 'function(invalidate<domtree>,early-cse-memssa)'),
  + ('invalidate<domtree>,early-cse<memssa>', 'function(invalidate<domtree>,early-cse<memssa>)'),
  ('function(loop-vectorize,instcombine)', 'function(loop-vectorize,instcombine)'),
  ('function(loop-vectorize),function(instcombine)', 'function(loop-vectorize),function(instcombine)'),
  ('function(loop-vectorize),function(instcombine),globalopt', 'module(function(loop-vectorize),function(instcombine),globalopt)'),
  - ('function(ee-instrument),function(ee-instrument),cgscc(inline),function(post-inline-ee-instrument)',
  - 'module(function(ee-instrument),function(ee-instrument),cgscc(inline),function(post-inline-ee-instrument))'),
  + ('function(ee-instrument),function(ee-instrument),cgscc(inline),function(ee-instrument<post-inline>)',
  + 'module(function(ee-instrument),function(ee-instrument),cgscc(inline),function(ee-instrument<post-inline>))'),
  ('function(print<demanded-bits>),attributor', 'module(function(print<demanded-bits>),attributor)'),
  ('function(tailcallelim),cgscc(inline)', 'module(function(tailcallelim),cgscc(inline))'),
  ('function(slp-vectorizer),module(hotcoldsplit)', 'module(function(slp-vectorizer),module(hotcoldsplit))'),
  + ('verify', 'module(verify)'),
  ('default<O2>', 'module(default<O2>)')
  ]
  