rustc_mir: split qualify_consts' "value qualification" bitflags into separate computations.#58403

Merged

bors merged 10 commits intorust-lang:masterfrom

eddyb:requalify

Feb 15, 2019

Commits on Feb 14, 2019

rustc_mir: rename qualify_consts::Qualifier to Checker.
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rustc_mir: split off some qualify_consts::Checker fields into a State struct.
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rustc_mir: split qualify_consts' checking and value qualification.
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rustc_mir: remove outdated `const fn` stability diagnostic.
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rustc_mir: remove qualify_consts::Qualif::FN_ARGUMENT.
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rustc_mir: rename `Qualif::for_ty to `Qualif::any_value_of_ty`.
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rustc_mir: avoid having an Option around each local qualification in qualify_consts.
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rustc_mir: do not treat NEEDS_DROP as unexpected in qualify_consts.
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rustc_mir: rename qualify_consts::Qualifier to ConstCx and keep in Checker as a field.
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rustc_mir: compute all the qualification bits separately in qualify_consts.
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