[Issue 13718] unary minus on number literals has lower precedence than UFCS

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=13718

--- Comment #1 from Dlang Bot <dlang-bot at dlang.rocks> ---
@ntrel created dlang/dmd pull request #15620 "Improve invalid operator error
message" mentioning this issue:

- Improve invalid operator error message

  Show operation.
  Use 'is not defined' for aggregate types.

  Part of Issue 13718 - unary minus on number literals has lower precedence
than UFCS.

https://github.com/dlang/dmd/pull/15620

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