It will throw exception about failed to resolve TupleElementNamesAttribute:.ctor sometime
The key "parameter.token" is updated, but the dictionary "CustomAttributes" not, thus get CustomAttribute by parameter.token as key will return wrong value. When it LookupToken will throw exception for unmatched module of wrong CustomAttribute.
It will throw exception about failed to resolve TupleElementNamesAttribute:.ctor sometime
The key "parameter.token" is updated, but the dictionary "CustomAttributes" not, thus get CustomAttribute by parameter.token as key will return wrong value. When it LookupToken will throw exception for unmatched module of wrong CustomAttribute.