8154705: invalid use of ALL-MODULE-PATH causes crash
Summary: Introducing Modules.initModules as a clear point where the module graphs is initialized in javac
Reviewed-by: jjg, ksrini

8161277: javax.lang.model.util.Types.isSameType(...) returns true on wildcards
Reviewed-by: mcimadamore

8159970: javac, JLS8 18.2.4 is not completely implemented by the compiler
Reviewed-by: mcimadamore