fix tests

compiler/rustc_middle/src/ty/print/pretty.rs

@@ -2896,7 +2896,8 @@ define_print_and_forward_display! {
     TraitPredPrintModifiersAndPath<'tcx> {
         if let Some(idx) = cx.tcx().generics_of(self.0.trait_ref.def_id).host_effect_index
         {
-            if self.0.trait_ref.args.const_at(idx) != cx.tcx().consts.true_ {
+            let arg = self.0.trait_ref.args.const_at(idx);
+            if arg != cx.tcx().consts.true_ && !arg.has_infer() {
                 p!("~const ");
             }
         }

tests/ui/consts/fn_trait_refs.stderr

@@ -4,12 +4,6 @@ error[E0635]: unknown feature `const_fn_trait_ref_impls`
 LL | #![feature(const_fn_trait_ref_impls)]
    |            ^^^^^^^^^^^^^^^^^^^^^^^^
 
-error[E0635]: unknown feature `const_cmp`
-  --> $DIR/fn_trait_refs.rs:8:12
-   |
-LL | #![feature(const_cmp)]
-   |            ^^^^^^^^^
-
 error: ~const can only be applied to `#[const_trait]` traits
   --> $DIR/fn_trait_refs.rs:15:15
    |
@@ -80,6 +74,6 @@ LL |     T: ~const FnMut<()> + ~const Destruct,
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
-error: aborting due to 12 previous errors
+error: aborting due to 11 previous errors
 
 For more information about this error, try `rustc --explain E0635`.

tests/ui/rfcs/rfc-2632-const-trait-impl/call-generic-method-nonconst.rs

@@ -21,7 +21,6 @@ const fn equals_self<T: ~const Foo>(t: &T) -> bool {
 // it not using the impl.
 
 pub const EQ: bool = equals_self(&S);
-//~^ ERROR
-// FIXME(effects) the diagnostics here isn't ideal, we shouldn't get `<false>`
+//~^ ERROR: the trait bound `S: ~const Foo` is not satisfied
 
 fn main() {}

tests/ui/rfcs/rfc-2632-const-trait-impl/call-generic-method-nonconst.stderr

@@ -1,4 +1,4 @@
-error[E0277]: the trait bound `S: ~const Foo<false>` is not satisfied
+error[E0277]: the trait bound `S: ~const Foo` is not satisfied
   --> $DIR/call-generic-method-nonconst.rs:23:34
    |
 LL | pub const EQ: bool = equals_self(&S);

tests/ui/rfcs/rfc-2632-const-trait-impl/const-impl-trait.stderr

@@ -4,13 +4,25 @@ error[E0277]: can't compare `impl PartialEq + Destruct + Copy` with `impl Partia
 LL |     fn huh() -> impl ~const PartialEq + ~const Destruct + Copy {
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `impl PartialEq + Destruct + Copy == impl PartialEq + Destruct + Copy`
    |
-   = help: the trait `PartialEq<impl PartialEq + Destruct + Copy>` is not implemented for `impl PartialEq + Destruct + Copy`
+   = help: the trait `~const PartialEq` is not implemented for `impl PartialEq + Destruct + Copy`
 note: required by a bound in `Foo::{opaque#0}`
   --> $DIR/const-impl-trait.rs:24:22
    |
 LL |     fn huh() -> impl ~const PartialEq + ~const Destruct + Copy;
    |                      ^^^^^^^^^^^^^^^^ required by this bound in `Foo::{opaque#0}`
 
-error: aborting due to 1 previous error
+error[E0277]: can't drop `impl PartialEq + Destruct + Copy`
+  --> $DIR/const-impl-trait.rs:28:17
+   |
+LL |     fn huh() -> impl ~const PartialEq + ~const Destruct + Copy {
+   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `~const Destruct` is not implemented for `impl PartialEq + Destruct + Copy`
+   |
+note: required by a bound in `Foo::{opaque#0}`
+  --> $DIR/const-impl-trait.rs:24:41
+   |
+LL |     fn huh() -> impl ~const PartialEq + ~const Destruct + Copy;
+   |                                         ^^^^^^^^^^^^^^^ required by this bound in `Foo::{opaque#0}`
+
+error: aborting due to 2 previous errors
 
 For more information about this error, try `rustc --explain E0277`.

tests/ui/rfcs/rfc-2632-const-trait-impl/const_derives/derive-const-use.rs

@@ -1,4 +1,5 @@
-// check-pass
+// known-bug: #110395
+
 #![feature(const_trait_impl, const_cmp, const_default_impls, derive_const, effects)]
 
 pub struct A;

tests/ui/rfcs/rfc-2632-const-trait-impl/const_derives/derive-const-use.stderr

@@ -1,9 +1,28 @@
 error[E0635]: unknown feature `const_default_impls`
-  --> $DIR/derive-const-use.rs:3:5
+  --> $DIR/derive-const-use.rs:3:41
    |
-LL |     const_default_impls, derive_const)]
-   |     ^^^^^^^^^^^^^^^^^^^
+LL | #![feature(const_trait_impl, const_cmp, const_default_impls, derive_const, effects)]
+   |                                         ^^^^^^^^^^^^^^^^^^^
 
-error: aborting due to 1 previous error
+error: const `impl` for trait `Default` which is not marked with `#[const_trait]`
+  --> $DIR/derive-const-use.rs:7:12
+   |
+LL | impl const Default for A {
+   |            ^^^^^^^
+   |
+   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+   = note: adding a non-const method body in the future would be a breaking change
+
+error: const `impl` for trait `Default` which is not marked with `#[const_trait]`
+  --> $DIR/derive-const-use.rs:15:16
+   |
+LL | #[derive_const(Default, PartialEq)]
+   |                ^^^^^^^
+   |
+   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+   = note: adding a non-const method body in the future would be a breaking change
+   = note: this error originates in the derive macro `Default` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to 3 previous errors
 
 For more information about this error, try `rustc --explain E0635`.

tests/ui/suggestions/invalid-bin-op.stderr

@@ -16,10 +16,6 @@ help: consider annotating `S<T>` with `#[derive(PartialEq)]`
 LL + #[derive(PartialEq)]
 LL | struct S<T>(T);
    |
-help: consider introducing a `where` clause, but there might be an alternative better way to express this requirement
-   |
-LL | pub fn foo<T>(s: S<T>, t: S<T>) where S<T>: PartialEq {
-   |                                 +++++++++++++++++++++
 
 error: aborting due to 1 previous error