Tim Chevalier 1c786bcc82 Initialize all constraints to False ...

Previously, typestate was initializing the init constraint for
a declared-but-not-initialized variable (like x in "let x;") to False,
but other constraints to Don't-know. This led to over-lenient results
when a variable was used before declaration (see the included test
case). Now, everything gets initialized to False in the prestate/poststate-
finding phase, and Don't-know should only be used in pre/postconditions.

This aspect of the algorithm really needs formalization (just on paper),
but for now, this closes #700

2011-08-05 15:25:52 -07:00

..

alias-mismatch.rs

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aliasness-mismatch.rs

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alt-join.rs

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alt-tag-nullary.rs

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alt-tag-unary.rs

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and-init.rs

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anon-obj-overriding-wrong-type.rs

Disallow overloading a method with one of different type. Closes #703.

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arg-count-mismatch.rs

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arg-type-mismatch.rs

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assign-alias.rs

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attr-bad-crate-attr.rc

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attr-bad-meta.rs

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attr-before-stmt.rs

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attr-before-view-item2.rs

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attr-before-view-item.rs

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attr-dangling-in-fn.rs

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attr-dangling-in-mod.rs

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auto-deref-bind.rs

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bad-alt.rs

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bad-bang-ann-2.rs

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bad-bang-ann-3.rs

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bad-bang-ann.rs

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bad-env-capture2.rs

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bad-env-capture3.rs

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bad-env-capture.rs

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bad-expr-path2.rs

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bad-expr-path.rs

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bad-main.rs

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bad-module.rs

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bad-name.rs

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bad-record-pat-2.rs

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bad-record-pat.rs

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bad-recv.rs

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bad-send.rs

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bad-type-env-capture.rs

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bang-tailexpr.rs

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binop-add-tup-assign.rs

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binop-add-tup.rs

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binop-bitxor-str.rs

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binop-logic-float.rs

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binop-logic-int.rs

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binop-mul-bool.rs

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binop-shift-port.rs

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binop-sub-obj.rs

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binop-typeck.rs

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block-coerce-no.rs

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block-copy.rs

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block-uninit.rs

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bogus-tag.rs

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break-outside-loop.rs

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break-uninit2.rs

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break-uninit.rs

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capture1.rs

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chan-parameterized-args.rs

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constrained-type-missing-check.rs

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constructor-as-cast.rs

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copy-a-resource.rs

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cross-crate-glob-collision.rs

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dead-code-be.rs

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dead-code-ret.rs

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direct-obj-fn-call.rs

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do-while-constraints.rs

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do-while-pred-constraints.rs

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does-nothing.rs

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dup-link-name.rs

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duplicate-name.rs

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export2.rs

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export-fully-qualified.rs

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export-import.rs

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export-no-tag-variants.rs

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export-tag-variant.rs

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export.rs

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ext-after-attrib.rs

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ext-noname.rs

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ext-nonexistent.rs

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extend-non-object.rs

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extenv-no-args.rs

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extenv-not-string-literal.rs

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extenv-too-many-args.rs

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extfmt-missing-type.rs

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extfmt-no-args.rs

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extfmt-non-literal2.rs

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extfmt-non-literal.rs

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extfmt-not-enough-args.rs

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extfmt-too-many-args.rs

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extfmt-unknown-type.rs

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extfmt-unsigned-plus.rs

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extfmt-unsigned-space.rs

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extfmt-unterminated-conv.rs

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fail-expr.rs

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fail-simple.rs

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fail-type-err.rs

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fn-as-iter.rs

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fn-bad-block-type.rs

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fn-compare-mismatch.rs

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fn-constraint.rs

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fn-expr-type-state.rs

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fn-expr-typestate-2.rs

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for-each-over-bs.rs

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for-loop-decl.rs

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forgot-ret.rs

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fru-extra-field.rs

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fru-typestate.rs

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if-branch-types.rs

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if-check-precond-fail.rs

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if-typeck.rs

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import2.rs

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import3.rs

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import4.rs

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import5.rs

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import-glob-0.rs

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import-glob-circular.rs

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import-glob-export.rs

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import-glob-multiple.rs

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import-loop-2.rs

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import-loop.rs

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import.rs

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impure-pred.rs

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infinite-tag-type-recursion.rs

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infinite-vec-type-recursion.rs

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item-name-overload.rs

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iter-as-fn.rs

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lambda-mutate-nested.rs

Prohibit assignment to upvars in lambdas. Closes #805.

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lambda-mutate.rs

Prohibit assignment to upvars in lambdas. Closes #805.

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let-destruct-refutable.rs

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macro-2.rs

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macro.rs

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main-wrong-type-2.rs

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main-wrong-type.rs

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missing-main.rs

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missing-return2.rs

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missing-return.rs

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multiline-comment-line-tracking.rs

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native-type-mismatch.rs

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nested-ty-params.rs

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no-constraint-prop.rs

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no-self-dispatch.rs

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not-a-pred-2.rs

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not-a-pred-3.rs

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not-a-pred-check.rs

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not-a-pred.rs

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not-pred-args.rs

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occurs-check-2.rs

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occurs-check.rs

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or-init.rs

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or-patter-mismatch.rs

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output-type-mismatch.rs

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pattern-tyvar-2.rs

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pattern-tyvar.rs

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pred-assign.rs

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pred-not-bool.rs

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pred-on-wrong-slots.rs

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pred-swap.rs

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put-in-fn.rs

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rec-extend.rs

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rec-missing-fields.rs

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ret-non-nil.rs

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return-uninit.rs

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self-call-non-obj.rs

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self-missing-method.rs

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shadow.rs

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slot-as-pred.rs

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spawn-non-nil-fn.rs

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swap-no-lval.rs

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swap-uninit.rs

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tag-type-args.rs

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tail-non-call.rs

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tail-typeck.rs

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type-arg-out-of-scope.rs

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type-mismatch-multiple.rs

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type-mismatch.rs

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type-recursive.rs

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type-shadow.rs

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unbalanced-comment.rs

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uninit-after-item.rs

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unreachable-arm.rs

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unsafe-alias-2.rs

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unsafe-alias.rs

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unsafe-alt.rs

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unsafe-for.rs

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unsafe-mutable-alias.rs

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use-after-move.rs

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use-meta-dup.rs

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use-meta-mismatch.rs

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use-meta.rc

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use-uninit-2.rs

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use-uninit-3.rs

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use-uninit.rs

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vec-field.rs

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vector-no-ann.rs

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while-bypass.rs

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while-expr.rs

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while-loop-constraints.rs

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while-loop-pred-constraints.rs

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while-type-error.rs

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writing-through-read-alias.rs

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writing-through-uninit-vec.rs

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writing-to-immutable-obj.rs

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writing-to-immutable-rec.rs

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writing-to-immutable-vec.rs

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wrong-ret-type.rs

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