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Adwin White 1c1372c908 bless diagnostics change

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bless diagnostics change

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delete some duplicated tests

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min_specialization

bless diagnostics change

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anyid-repro-125197.rs

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assoc-ty-graph-cycle.rs

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broken-mir-drop-glue-107228.rs

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cross-crate-defaults.rs

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default-associated-type-bound-1.rs

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default-associated-type-bound-1.stderr

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default-associated-type-bound-2.rs

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default-associated-type-bound-2.stderr

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default-generic-associated-type-bound.rs

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default-generic-associated-type-bound.stderr

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default-proj-ty-as-type-of-const-issue-125757.rs

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default-proj-ty-as-type-of-const-issue-125757.stderr

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dont-drop-upcast-candidate.rs

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dont-drop-upcast-candidate.stderr

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feature-gate-specialization.rs

Emit pre-expansion feature gate warning for item modifier default

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feature-gate-specialization.stderr

Emit pre-expansion feature gate warning for item modifier default

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issue-33017.rs

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issue-33017.stderr

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issue-35376.rs

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issue-36804.rs

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issue-38091-2.rs

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issue-38091-2.stderr

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issue-38091.rs

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issue-38091.stderr

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issue-39448.rs

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issue-39448.stderr

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issue-39618.rs

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issue-39618.stderr

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issue-40582.rs

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issue-43037.current.stderr

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issue-43037.negative.stderr

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issue-43037.rs

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issue-44861.rs

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issue-44861.stderr

On unmet trait bound, mention if trait is unstable

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issue-45814.current.stderr

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issue-45814.negative.stderr

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issue-45814.rs

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issue-50452-fail.rs

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issue-50452-fail.stderr

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issue-50452.rs

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issue-51892.rs

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issue-52050.rs

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issue-52050.stderr

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issue-59435.rs

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issue-63716-parse-async.rs

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issue-68830-spurious-diagnostics.rs

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issue-70442.rs

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issue-111232.rs

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non-defaulted-item-fail.rs

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non-defaulted-item-fail.stderr

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overlap-due-to-unsatisfied-const-bound.rs

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overlap-due-to-unsatisfied-const-bound.stderr

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prefer-specializing-impl-over-default.rs

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README-rpass.md

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README.md

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soft-feature-gate-specialization.default.stderr

Update tracking issue number of future-incompatibility lint unstable_syntax_pre_expansion

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soft-feature-gate-specialization.min.stderr

Update tracking issue number of future-incompatibility lint unstable_syntax_pre_expansion

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soft-feature-gate-specialization.rs

Reword descriptions of soft feature gate tests

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source-impl-requires-constraining-predicates-ambig.rs

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source-impl-requires-constraining-predicates.rs

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specialization-allowed-cross-crate.rs

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specialization-assoc-fns.rs

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specialization-basics.rs

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specialization-cross-crate-no-gate.rs

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specialization-cross-crate.rs

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specialization-default-items-drop-coherence.current.stderr

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specialization-default-items-drop-coherence.rs

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specialization-default-methods.rs

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specialization-default-projection.current.stderr

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specialization-default-projection.next.stderr

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specialization-default-projection.rs

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specialization-default-types.current.stderr

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specialization-default-types.next.stderr

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specialization-default-types.rs

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specialization-feature-gate-overlap.rs

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specialization-no-default.rs

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specialization-no-default.stderr

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specialization-on-projection.rs

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specialization-out-of-order.rs

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specialization-overlap-hygiene.rs

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specialization-overlap-hygiene.stderr

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specialization-overlap-negative.rs

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specialization-overlap-negative.stderr

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specialization-overlap-projection.rs

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specialization-overlap-projection.stderr

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specialization-overlap.rs

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specialization-overlap.stderr

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specialization-polarity.rs

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specialization-polarity.stderr

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specialization-projection-alias.rs

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specialization-projection.rs

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specialization-supertraits.rs

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specialization-translate-projections-with-lifetimes.rs

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specialization-translate-projections-with-params.rs

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specialization-translate-projections.rs

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trait-specialization-default-methods-55380.rs

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transmute-specialization.rs

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README.md

This directory contains the test for incorrect usage of specialization that should lead to compile failure. Those tests break down into a few categories:

Feature gating
- On use of the default keyword
- On overlapping impls
Overlap checking with specialization enabled
- Basic overlap scenarios
  - Includes purely structural overlap
  - Includes purely trait-based overlap
  - Includes mix
- Overlap with differing polarity
Attempt to specialize without using default
Attempt to change impl polarity in a specialization
Attempt to rely on projection of a default type
- Rely on it externally in both generic and monomorphic contexts
- Rely on it both within an impl and outside it