[Issue 19590] __traits allMembers should put fully qualified names for imports

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19590

--- Comment #7 from Walter Bright <bugzilla at digitalmars.com> ---
This was reverted because it broke existing code. The solution can be leaving
allMembers alone and come up with a new name, allMembers2 for the new behavior.

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