Fix Issue 15414 - __traits(getAttributes) should error if the functio…

[RazvanN7]

…n has multiple overloads

[dlang-bot]

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Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	15414	normal	__traits(getAttributes) should error if the function has multiple overloads

Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub run digger -- build "master + dmd#14554"

[Geod24]

Great work on the release notes, appreciated 👍

[RazvanN7]

@Geod24 Thanks!

@thewilsonator Done.

[Geod24]

This test fails: https://github.com/dlang/phobos/blob/28aec22c225f5be74908f5310b0783e520e1ac3e/std/traits.d#L8779

[RazvanN7]

@Geod24 I tracked down the issue: dlang/phobos#8631

[RazvanN7]

All green. Merging.

[JohanEngelen]

Regression: https://issues.dlang.org/show_bug.cgi?id=23966