Bless tests now that we do promotion if min_const_fn fails

We bailed out of `QualifyAndPromoteConsts` immediately if the
`min_const_fn` checks failed, which sometimes resulted in additional,
spurious errors since promotion was skipped.

We now do promotion in a completely separate pass, so this is no longer
an issue.

src/test/ui/consts/min_const_fn/min_const_fn.rs

@@ -136,7 +136,6 @@ const fn no_rpit() -> impl std::fmt::Debug {} //~ ERROR `impl Trait` in const fn
 const fn no_dyn_trait(_x: &dyn std::fmt::Debug) {} //~ ERROR trait bounds other than `Sized`
 const fn no_dyn_trait_ret() -> &'static dyn std::fmt::Debug { &() }
 //~^ ERROR trait bounds other than `Sized`
-//~| ERROR cannot return reference to temporary value
 
 const fn no_unsafe() { unsafe {} }
 

src/test/ui/consts/min_const_fn/min_const_fn.stderr

@@ -286,17 +286,8 @@ LL | const fn no_dyn_trait_ret() -> &'static dyn std::fmt::Debug { &() }
    = note: for more information, see issue https://github.com/rust-lang/rust/issues/57563
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
-error[E0515]: cannot return reference to temporary value
-  --> $DIR/min_const_fn.rs:137:63
-   |
-LL | const fn no_dyn_trait_ret() -> &'static dyn std::fmt::Debug { &() }
-   |                                                               ^--
-   |                                                               ||
-   |                                                               |temporary value created here
-   |                                                               returns a reference to data owned by the current function
-
 error[E0723]: trait bounds other than `Sized` on const fn parameters are unstable
-  --> $DIR/min_const_fn.rs:143:41
+  --> $DIR/min_const_fn.rs:142:41
    |
 LL | const fn really_no_traits_i_mean_it() { (&() as &dyn std::fmt::Debug, ()).1 }
    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -305,7 +296,7 @@ LL | const fn really_no_traits_i_mean_it() { (&() as &dyn std::fmt::Debug, ()).1
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
 error[E0723]: function pointers in const fn are unstable
-  --> $DIR/min_const_fn.rs:146:21
+  --> $DIR/min_const_fn.rs:145:21
    |
 LL | const fn no_fn_ptrs(_x: fn()) {}
    |                     ^^
@@ -314,15 +305,15 @@ LL | const fn no_fn_ptrs(_x: fn()) {}
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
 error[E0723]: function pointers in const fn are unstable
-  --> $DIR/min_const_fn.rs:148:27
+  --> $DIR/min_const_fn.rs:147:27
    |
 LL | const fn no_fn_ptrs2() -> fn() { fn foo() {} foo }
    |                           ^^^^
    |
    = note: for more information, see issue https://github.com/rust-lang/rust/issues/57563
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
-error: aborting due to 37 previous errors
+error: aborting due to 36 previous errors
 
-Some errors have detailed explanations: E0493, E0515, E0723.
+Some errors have detailed explanations: E0493, E0723.
 For more information about an error, try `rustc --explain E0493`.

src/test/ui/consts/min_const_fn/min_const_fn_dyn.rs

@@ -11,6 +11,5 @@ const fn no_inner_dyn_trait2(x: Hide) {
 }
 const fn no_inner_dyn_trait_ret() -> Hide { Hide(HasDyn { field: &0 }) }
 //~^ ERROR trait bounds other than `Sized`
-//~| ERROR temporary value dropped while borrowed
 
 fn main() {}

src/test/ui/consts/min_const_fn/min_const_fn_dyn.stderr

@@ -16,16 +16,6 @@ LL | const fn no_inner_dyn_trait_ret() -> Hide { Hide(HasDyn { field: &0 }) }
    = note: for more information, see issue https://github.com/rust-lang/rust/issues/57563
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
 
-error[E0716]: temporary value dropped while borrowed
-  --> $DIR/min_const_fn_dyn.rs:12:67
-   |
-LL | const fn no_inner_dyn_trait_ret() -> Hide { Hide(HasDyn { field: &0 }) }
-   |                                                                  -^    - temporary value is freed at the end of this statement
-   |                                                                  ||
-   |                                                                  |creates a temporary which is freed while still in use
-   |                                                                  cast requires that borrow lasts for `'static`
-
-error: aborting due to 3 previous errors
+error: aborting due to 2 previous errors
 
-Some errors have detailed explanations: E0716, E0723.
-For more information about an error, try `rustc --explain E0716`.
+For more information about this error, try `rustc --explain E0723`.