Logical right and left shift diagnostics.

[moonheart08]

This adds lints for <<< and >>>. They explicitly do not suggest replacements as I could not figure out a simple way to do so for >>>, and for <<< the replacement is subjective (it could be <<, but that doesn't preserve sign.)

[rust-highfive]

r? @davidtwco

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[rustbot]

rustc_error_messages was changed

cc @davidtwco, @compiler-errors, @JohnTitor, @estebank, @TaKO8Ki

[estebank]

We don't end sentences with period (nor we capitalize the first letter in sentences)

Suggested change

	.arithmetic_left_shift_operator_invalid = `<<<` is not a valid left shift operator, consider shifting normally and fixing the sign as needed.
	.arithmetic_right_shift_operator_invalid = `>>>` is not a valid right shift operator, consider casting to a signed integer and right shifting normally.
	.arithmetic_left_shift_operator_invalid = `<<<` is not a valid left shift operator, consider shifting normally and fixing the sign as needed
	.arithmetic_right_shift_operator_invalid = `>>>` is not a valid right shift operator, consider casting to an unsigned integer and right shifting normally

I would prefer if the consider... text was instead a note, separate from the main label

[davidtwco]

I agree with both of these comments.

[davidtwco]

I agree with both of these comments.

[davidtwco]

r? @estebank

[bors]

☔ The latest upstream changes (presumably #101846) made this pull request unmergeable. Please resolve the merge conflicts.

[Noratrieb]

Hi, I've seen you changed some diagnostic structs in your PR. After #103345, the way we refer to fluent messages changed. They are now in a flat namespace with the same identifier as in the fluent file. For example, parser::cool_thing is now parser_cool_thing and parser::suggestion just suggestion.
You should rebase to the latest master and change your fluent message references as described above. Thanks!

[moonheart08]

Ah shoot, this slipped under my radar. I'll put finishing this on my calender.

[apiraino]

Switching to waiting on author to incorporate changes. Feel free to request a review with @rustbot ready, thanks!

@rustbot author

[Dylan-DPC]

@moonheart08 any updates on this?

[Dylan-DPC]

Closing this as inactive. Feel free to reöpen this pr or create a new pr if you get the time to work on this. Thanks