[Issue 20443] Case where code compiles depending on order of declaration

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20443

Walter Bright <bugzilla at digitalmars.com> changed:

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--- Comment #3 from Walter Bright <bugzilla at digitalmars.com> ---
(In reply to Daniel X from comment #1)
>     import std.traits: isCopyable;

Test cases are much better if they don't import libraries (which can be very
large). It's also undesirable to have Phobos dependencies in the test suite.

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