Attmpt to fix https://github.com/ceylon/ceylon-compiler/issues/1475
We should not throw the error when the member obtained by getMembers()
is an overloaded version of a Java class constructor. Just skip it since
getMembers() also returns the corresponding abstraction declaration
Merge pull request #871 from davidfestal/master

Attmpt to fix https://github.com/ceylon/ceylon-compiler/issues/1475