Auto merge of rust-lang#80453 - petrochenkov:nocfail, r=Mark-Simulacrum

Remove `compile-fail` test suite

By moving all of its tests to `ui` test suite.
Now we have directives like `// dont-check-compiler-stderr` that allow to disable `.stderr` comparison for platform-dependent tests without introducing a whole new test suite.

Author: bors

compiler/rustc_hir/src/hir.rs

@@ -607,7 +607,7 @@ pub struct Crate<'hir> {
     // over the ids in increasing order. In principle it should not
     // matter what order we visit things in, but in *practice* it
     // does, because it can affect the order in which errors are
-    // detected, which in turn can make compile-fail tests yield
+    // detected, which in turn can make UI tests yield
     // slightly different results.
     pub items: BTreeMap<HirId, Item<'hir>>,
 

compiler/rustc_incremental/src/assert_dep_graph.rs

@@ -12,7 +12,7 @@
 //! In this code, we report errors on each `rustc_if_this_changed`
 //! annotation. If a path exists in all cases, then we would report
 //! "all path(s) exist". Otherwise, we report: "no path to `foo`" for
-//! each case where no path exists. `compile-fail` tests can then be
+//! each case where no path exists. `ui` tests can then be
 //! used to check when paths exist or do not.
 //!
 //! The full form of the `rustc_if_this_changed` annotation is

compiler/rustc_interface/src/passes.rs

@@ -889,7 +889,7 @@ fn analysis(tcx: TyCtxt<'_>, cnum: CrateNum) -> Result<()> {
 
     // Avoid overwhelming user with errors if borrow checking failed.
     // I'm not sure how helpful this is, to be honest, but it avoids a
-    // lot of annoying errors in the compile-fail tests (basically,
+    // lot of annoying errors in the ui tests (basically,
     // lint warnings and so on -- kindck used to do this abort, but
     // kindck is gone now). -nmatsakis
     if sess.has_errors() {

compiler/rustc_interface/src/queries.rs

@@ -280,7 +280,7 @@ impl<'tcx> Queries<'tcx> {
                 // Don't do code generation if there were any errors
                 self.session().compile_status()?;
 
-                // Hook for compile-fail tests.
+                // Hook for UI tests.
                 Self::check_for_rustc_errors_attr(tcx);
 
                 Ok(passes::start_codegen(&***self.codegen_backend(), tcx, &*outputs.peek()))
@@ -289,7 +289,7 @@ impl<'tcx> Queries<'tcx> {
     }
 
     /// Check for the `#[rustc_error]` annotation, which forces an error in codegen. This is used
-    /// to write compile-fail tests that actually test that compilation succeeds without reporting
+    /// to write UI tests that actually test that compilation succeeds without reporting
     /// an error.
     fn check_for_rustc_errors_attr(tcx: TyCtxt<'_>) {
         let def_id = match tcx.entry_fn(LOCAL_CRATE) {

compiler/rustc_mir/src/transform/rustc_peek.rs

@@ -92,7 +92,7 @@ impl<'tcx> MirPass<'tcx> for SanityCheck {
 /// "rustc_peek: bit not set".
 ///
 /// The intention is that one can write unit tests for dataflow by
-/// putting code into a compile-fail test and using `rustc_peek` to
+/// putting code into an UI test and using `rustc_peek` to
 /// make observations about the results of dataflow static analyses.
 ///
 /// (If there are any calls to `rustc_peek` that do not match the

compiler/rustc_resolve/src/build_reduced_graph.rs

@@ -525,7 +525,7 @@ impl<'a, 'b> BuildReducedGraphVisitor<'a, 'b> {
                             ModuleKind::Block(..) => unreachable!(),
                         };
                         // HACK(eddyb) unclear how good this is, but keeping `$crate`
-                        // in `source` breaks `src/test/compile-fail/import-crate-var.rs`,
+                        // in `source` breaks `src/test/ui/imports/import-crate-var.rs`,
                         // while the current crate doesn't have a valid `crate_name`.
                         if crate_name != kw::Invalid {
                             // `crate_name` should not be interpreted as relative.

compiler/rustc_trait_selection/src/infer.rs

@@ -162,7 +162,7 @@ impl<'tcx> OutlivesEnvironmentExt<'tcx> for OutlivesEnvironment<'tcx> {
     /// 'b` (and hence, transitively, that `T: 'a`). This method would
     /// add those assumptions into the outlives-environment.
     ///
-    /// Tests: `src/test/compile-fail/regions-free-region-ordering-*.rs`
+    /// Tests: `src/test/ui/regions/regions-free-region-ordering-*.rs`
     fn add_implied_bounds(
         &mut self,
         infcx: &InferCtxt<'a, 'tcx>,

compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs

@@ -558,7 +558,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                     // where-clause or, in the case of an object type,
                     // it could be that the object type lists the
                     // trait (e.g., `Foo+Send : Send`). See
-                    // `compile-fail/typeck-default-trait-impl-send-param.rs`
+                    // `ui/typeck/typeck-default-trait-impl-send-param.rs`
                     // for an example of a test case that exercises
                     // this path.
                 }

compiler/rustc_typeck/src/collect.rs

@@ -1767,8 +1767,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: DefId) -> ty::GenericP
     const NO_GENERICS: &hir::Generics<'_> = &hir::Generics::empty();
 
     // We use an `IndexSet` to preserves order of insertion.
-    // Preserving the order of insertion is important here so as not to break
-    // compile-fail UI tests.
+    // Preserving the order of insertion is important here so as not to break UI tests.
     let mut predicates: FxIndexSet<(ty::Predicate<'_>, Span)> = FxIndexSet::default();
 
     let ast_generics = match node {

src/bootstrap/README.md

@@ -201,7 +201,6 @@ build/
     # Output for all compiletest-based test suites
     test/
       ui/
-      compile-fail/
       debuginfo/
       ...