Rollup merge of #69498 - mark-i-m:describe-it-2, r=matthewjasper

Change "method" to "associated function"

r? @matthewjasper

cc @Centril @eddyb #67742

I'm opening this mostly as a test to see what the diagnostic changes would be. It seems that this makes them somewhat more verbose, and I'm not sure it's worth it...

The relevant changes are the last two commits (it is rebased on top of #67742)

Author: Dylan-DPC

src/librustc_hir/def.rs

@@ -107,8 +107,7 @@ impl DefKind {
             DefKind::Union => "union",
             DefKind::Trait => "trait",
             DefKind::ForeignTy => "foreign type",
-            // FIXME: Update the description to "assoc fn"
-            DefKind::AssocFn => "method",
+            DefKind::AssocFn => "associated function",
             DefKind::Const => "constant",
             DefKind::AssocConst => "associated constant",
             DefKind::TyParam => "type parameter",
@@ -123,6 +122,7 @@ impl DefKind {
             DefKind::AssocTy
             | DefKind::AssocConst
             | DefKind::AssocOpaqueTy
+            | DefKind::AssocFn
             | DefKind::Enum
             | DefKind::OpaqueTy => "an",
             DefKind::Macro(macro_kind) => macro_kind.article(),

src/test/ui/associated-item/associated-item-enum.stderr

@@ -8,7 +8,7 @@ LL |     Enum::mispellable();
    |           ^^^^^^^^^^^
    |           |
    |           variant or associated item not found in `Enum`
-   |           help: there is a method with a similar name: `misspellable`
+   |           help: there is an associated function with a similar name: `misspellable`
 
 error[E0599]: no variant or associated item named `mispellable_trait` found for enum `Enum` in the current scope
   --> $DIR/associated-item-enum.rs:18:11

src/test/ui/async-await/issues/issue-62097.nll.stderr

@@ -16,13 +16,13 @@ help: to force the closure to take ownership of `self` (and any other referenced
 LL |         foo(move || self.bar()).await;
    |             ^^^^^^^
 
-error[E0521]: borrowed data escapes outside of method
+error[E0521]: borrowed data escapes outside of associated function
   --> $DIR/issue-62097.rs:13:9
    |
 LL |     pub async fn run_dummy_fn(&self) {
-   |                               ----- `self` is a reference that is only valid in the method body
+   |                               ----- `self` is a reference that is only valid in the associated function body
 LL |         foo(|| self.bar()).await;
-   |         ^^^^^^^^^^^^^^^^^^ `self` escapes the method body here
+   |         ^^^^^^^^^^^^^^^^^^ `self` escapes the associated function body here
 
 error: aborting due to 2 previous errors
 

src/test/ui/async-await/issues/issue-63388-1.nll.stderr

@@ -9,7 +9,7 @@ LL |       ) -> &dyn Foo
 LL | /     {
 LL | |         foo
 LL | |     }
-   | |_____^ method was supposed to return data with lifetime `'a` but it is returning data with lifetime `'1`
+   | |_____^ associated function was supposed to return data with lifetime `'a` but it is returning data with lifetime `'1`
 
 error: aborting due to previous error
 

src/test/ui/auto-ref-slice-plus-ref.stderr

@@ -2,7 +2,7 @@ error[E0599]: no method named `test_mut` found for struct `std::vec::Vec<{intege
   --> $DIR/auto-ref-slice-plus-ref.rs:7:7
    |
 LL |     a.test_mut();
-   |       ^^^^^^^^ help: there is a method with a similar name: `get_mut`
+   |       ^^^^^^^^ help: there is an associated function with a similar name: `get_mut`
    |
    = help: items from traits can only be used if the trait is implemented and in scope
 note: `MyIter` defines an item `test_mut`, perhaps you need to implement it

src/test/ui/block-result/issue-3563.stderr

@@ -2,7 +2,7 @@ error[E0599]: no method named `b` found for reference `&Self` in the current sco
   --> $DIR/issue-3563.rs:3:17
    |
 LL |         || self.b()
-   |                 ^ help: there is a method with a similar name: `a`
+   |                 ^ help: there is an associated function with a similar name: `a`
 
 error: aborting due to previous error
 

src/test/ui/error-codes/E0624.rs

@@ -8,5 +8,5 @@ mod inner {
 
 fn main() {
     let foo = inner::Foo;
-    foo.method(); //~ ERROR method `method` is private [E0624]
+    foo.method(); //~ ERROR associated function `method` is private [E0624]
 }

src/test/ui/error-codes/E0624.stderr

@@ -1,4 +1,4 @@
-error[E0624]: method `method` is private
+error[E0624]: associated function `method` is private
   --> $DIR/E0624.rs:11:9
    |
 LL |     foo.method();

src/test/ui/explore-issue-38412.stderr

@@ -79,19 +79,19 @@ LL |     r.unstable_undeclared();
    = note: see issue #38412 <https://github.com/rust-lang/rust/issues/38412> for more information
    = help: add `#![feature(unstable_undeclared)]` to the crate attributes to enable
 
-error[E0624]: method `pub_crate` is private
+error[E0624]: associated function `pub_crate` is private
   --> $DIR/explore-issue-38412.rs:50:7
    |
 LL |     r.pub_crate();
    |       ^^^^^^^^^
 
-error[E0624]: method `pub_mod` is private
+error[E0624]: associated function `pub_mod` is private
   --> $DIR/explore-issue-38412.rs:51:7
    |
 LL |     r.pub_mod();
    |       ^^^^^^^
 
-error[E0624]: method `private` is private
+error[E0624]: associated function `private` is private
   --> $DIR/explore-issue-38412.rs:52:7
    |
 LL |     r.private();
@@ -115,19 +115,19 @@ LL |     t.unstable_undeclared();
    = note: see issue #38412 <https://github.com/rust-lang/rust/issues/38412> for more information
    = help: add `#![feature(unstable_undeclared)]` to the crate attributes to enable
 
-error[E0624]: method `pub_crate` is private
+error[E0624]: associated function `pub_crate` is private
   --> $DIR/explore-issue-38412.rs:63:7
    |
 LL |     t.pub_crate();
    |       ^^^^^^^^^
 
-error[E0624]: method `pub_mod` is private
+error[E0624]: associated function `pub_mod` is private
   --> $DIR/explore-issue-38412.rs:64:7
    |
 LL |     t.pub_mod();
    |       ^^^^^^^
 
-error[E0624]: method `private` is private
+error[E0624]: associated function `private` is private
   --> $DIR/explore-issue-38412.rs:65:7
    |
 LL |     t.private();

src/test/ui/fn-in-pat.rs

@@ -8,7 +8,7 @@ fn hof<F>(_: F) where F: FnMut(()) {}
 
 fn ice() {
     hof(|c| match c {
-        A::new() => (), //~ ERROR expected tuple struct or tuple variant, found method
+        A::new() => (), //~ ERROR expected tuple struct or tuple variant, found associated function
         _ => ()
     })
 }