Rollup of 6 pull requests Successful merges: - #111501 (MIR drive-by cleanups) - #111609 (Mark internal functions and traits unsafe to reflect preconditions) - #111612 (Give better error when collecting into `&[T]`) - #111756 (Rename `{drop,forget}_{copy,ref}` lints to more consistent naming) - #111843 (move lcnr to only review types stuff) - #111844 (Migrate GUI colors test to original CSS color format) r? `@ghost` `@rustbot` modify labels: rollup
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