Fix tests and AstConv -> dyn AstConv

Author: jackh726

compiler/rustc_typeck/src/lib.rs

@@ -430,7 +430,7 @@ pub fn hir_ty_to_ty<'tcx>(tcx: TyCtxt<'tcx>, hir_ty: &hir::Ty<'_>) -> Ty<'tcx> {
     let env_node_id = tcx.hir().get_parent_item(hir_ty.hir_id);
     let env_def_id = tcx.hir().local_def_id(env_node_id);
     let item_cx = self::collect::ItemCtxt::new(tcx, env_def_id.to_def_id());
-    AstConv::ast_ty_to_ty(&item_cx, hir_ty)
+    <dyn AstConv<'_>>::ast_ty_to_ty(&item_cx, hir_ty)
 }
 
 pub fn hir_trait_to_predicates<'tcx>(

src/test/ui/in-band-lifetimes/no_introducing_in_band_in_locals.rs

@@ -7,7 +7,7 @@ fn foo(x: &u32) {
 
 fn foo2(x: &u32) {}
 fn bar() {
-    let y: fn(&'test u32) = foo2;
+    let y: fn(&'test u32) = foo2; //~ ERROR use of undeclared lifetime
 }
 
 fn main() {}

src/test/ui/in-band-lifetimes/no_introducing_in_band_in_locals.stderr

@@ -6,6 +6,22 @@ LL | fn foo(x: &u32) {
 LL |     let y: &'test u32 = x;
    |             ^^^^^ undeclared lifetime
 
-error: aborting due to previous error
+error[E0261]: use of undeclared lifetime name `'test`
+  --> $DIR/no_introducing_in_band_in_locals.rs:10:16
+   |
+LL |     let y: fn(&'test u32) = foo2;
+   |                ^^^^^ undeclared lifetime
+   |
+   = note: for more information on higher-ranked polymorphism, visit https://doc.rust-lang.org/nomicon/hrtb.html
+help: consider introducing lifetime `'test` here
+   |
+LL | fn bar<'test>() {
+   |       ^^^^^^^
+help: consider making the type lifetime-generic with a new `'test` lifetime
+   |
+LL |     let y: for<'test> fn(&'test u32) = foo2;
+   |            ^^^^^^^^^^
+
+error: aborting due to 2 previous errors
 
 For more information about this error, try `rustc --explain E0261`.

src/test/ui/methods/method-call-lifetime-args-unresolved.rs

@@ -1,5 +1,3 @@
 fn main() {
     0.clone::<'a>(); //~ ERROR use of undeclared lifetime name `'a`
-    //~^ WARNING cannot specify lifetime arguments
-    //~| WARNING this was previously accepted
 }

src/test/ui/methods/method-call-lifetime-args-unresolved.stderr

@@ -1,18 +1,3 @@
-warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
-  --> $DIR/method-call-lifetime-args-unresolved.rs:2:15
-   |
-LL |     0.clone::<'a>();
-   |               ^^
-   | 
-  ::: $SRC_DIR/core/src/clone.rs:LL:COL
-   |
-LL |     fn clone(&self) -> Self;
-   |              - the late bound lifetime parameter is introduced here
-   |
-   = note: `#[warn(late_bound_lifetime_arguments)]` on by default
-   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-   = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
-
 error[E0261]: use of undeclared lifetime name `'a`
   --> $DIR/method-call-lifetime-args-unresolved.rs:2:15
    |
@@ -23,6 +8,6 @@ LL |     0.clone::<'a>();
    |
    = help: if you want to experiment with in-band lifetime bindings, add `#![feature(in_band_lifetimes)]` to the crate attributes
 
-error: aborting due to previous error; 1 warning emitted
+error: aborting due to previous error
 
 For more information about this error, try `rustc --explain E0261`.