adopt to compiler changes

Author: WaffleLapkin

compiler/rustc_ast_lowering/src/path.rs

@@ -346,7 +346,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
     fn lower_parenthesized_parameter_data(
         &mut self,
         data: &ParenthesizedArgs,
-        itctx: ImplTraitContext,
+        itctx: &ImplTraitContext,
     ) -> (GenericArgsCtor<'hir>, bool) {
         // Switch to `PassThrough` mode for anonymous lifetimes; this
         // means that we permit things like `&Ref<T>`, where `Ref` has

src/test/ui/impl-trait/impl-fn-predefined-lifetimes.rs

@@ -2,8 +2,10 @@
 use std::fmt::Debug;
 
 fn a<'a>() -> impl Fn(&'a u8) -> (impl Debug + '_) {
-    //~^ ERROR hidden type for `impl Debug` captures lifetime that does not appear in bounds
+    //~^ ERROR cannot resolve opaque type
+
     |x| x
+    //~^ ERROR concrete type differs from previous defining opaque type use
 }
 
 fn _b<'a>() -> impl Fn(&'a u8) -> (impl Debug + 'a) {

src/test/ui/impl-trait/impl-fn-predefined-lifetimes.stderr

@@ -1,15 +1,24 @@
-error[E0700]: hidden type for `impl Debug` captures lifetime that does not appear in bounds
-  --> $DIR/impl-fn-predefined-lifetimes.rs:4:35
+error: concrete type differs from previous defining opaque type use
+  --> $DIR/impl-fn-predefined-lifetimes.rs:7:9
    |
-LL | fn a<'a>() -> impl Fn(&'a u8) -> (impl Debug + '_) {
-   |                                   ^^^^^^^^^^^^^^^
+LL |     |x| x
+   |         ^ expected `impl Debug + '_`, got `&u8`
    |
-note: hidden type `&'<empty> u8` captures lifetime smaller than the function body
+note: previous use here
+  --> $DIR/impl-fn-predefined-lifetimes.rs:7:5
+   |
+LL |     |x| x
+   |     ^^^^^
+
+error[E0720]: cannot resolve opaque type
   --> $DIR/impl-fn-predefined-lifetimes.rs:4:35
    |
 LL | fn a<'a>() -> impl Fn(&'a u8) -> (impl Debug + '_) {
-   |                                   ^^^^^^^^^^^^^^^
+   |                                   ^^^^^^^^^^^^^^^ recursive opaque type
+...
+LL |     |x| x
+   |     ----- returning here with type `[closure@$DIR/impl-fn-predefined-lifetimes.rs:7:5: 7:8]`
 
-error: aborting due to previous error
+error: aborting due to 2 previous errors
 
-For more information about this error, try `rustc --explain E0700`.
+For more information about this error, try `rustc --explain E0720`.