Fix order of conformance declaration and usage#143

Merged

turbolent merged 2 commits intomasterfrom bastian/fix-conformance-declaration-and-checking-order

May 29, 2020

+63-24

Commits on May 27, 2020

declare nested composites and interfaces before checking members, so conformances are declared
turbolent
committed

Commits on May 29, 2020

add an invalid test case
turbolent
committed