Changing error messages and renaming tests #63127

`async-await/no-args-non-move-async-closure`
`generator/no-arguments-on-generators`

src/librustc/error_codes.rs

@@ -2231,7 +2231,7 @@ register_diagnostics! {
     E0495, // cannot infer an appropriate lifetime due to conflicting requirements
     E0566, // conflicting representation hints
     E0623, // lifetime mismatch where both parameters are anonymous regions
-    E0628, // generators cannot have explicit arguments
+    E0628, // generators cannot have explicit parameters
     E0631, // type mismatch in closure arguments
     E0637, // "'_" is not a valid lifetime bound
     E0657, // `impl Trait` can only capture lifetimes bound at the fn level
@@ -2239,7 +2239,7 @@ register_diagnostics! {
     E0688, // in-band lifetimes cannot be mixed with explicit lifetime binders
     E0697, // closures cannot be static
     E0707, // multiple elided lifetimes used in arguments of `async fn`
-    E0708, // `async` non-`move` closures with arguments are not currently supported
+    E0708, // `async` non-`move` closures with parameters are not currently supported
     E0709, // multiple different lifetimes used in arguments of `async fn`
     E0710, // an unknown tool name found in scoped lint
     E0711, // a feature has been declared with conflicting stability attributes

src/librustc/hir/lowering/expr.rs

@@ -724,7 +724,7 @@ impl LoweringContext<'_> {
                         self.sess,
                         fn_decl_span,
                         E0628,
-                        "generators cannot have explicit arguments"
+                        "generators cannot have explicit parameters"
                     );
                     self.sess.abort_if_errors();
                 }
@@ -775,7 +775,7 @@ impl LoweringContext<'_> {
                     this.sess,
                     fn_decl_span,
                     E0708,
-                    "`async` non-`move` closures with arguments are not currently supported",
+                    "`async` non-`move` closures with parameters are not currently supported",
                 )
                 .help(
                     "consider using `let` statements to manually capture \

src/test/ui/async-await/no-params-non-move-async-closure.stderr

@@ -1,5 +1,5 @@
 error[E0708]: `async` non-`move` closures with parameters are not currently supported
-  --> $DIR/no-args-non-move-async-closure.rs:6:13
+  --> $DIR/no-params-non-move-async-closure.rs:6:13
    |
 LL |     let _ = async |x: u8| {};
    |             ^^^^^^^^^^^^^

src/test/ui/generator/no-parameters-on-generators.stderr

@@ -1,5 +1,5 @@
 error[E0628]: generators cannot have explicit parameters
-  --> $DIR/no-arguments-on-generators.rs:4:15
+  --> $DIR/no-parameters-on-generators.rs:4:15
    |
 LL |     let gen = |start| {
    |               ^^^^^^^