update feature gate test

Author: Keith-Cancel

tests/ui/feature-gates/feature-gate-mgca-type-const-syntax.rs

@@ -1,19 +1,17 @@
-#![allow(incomplete_features)]
-#![feature(min_generic_const_args)]
-
 type const FOO: u8 = 10;
-//~^ ERROR  `type const` syntax is experimental [E0658]
+//~^ ERROR `type const` syntax is experimental [E0658]
+//~| ERROR top-level `type const` are unstable [E0658]
 
 trait Bar {
     type const BAR: bool;
-    //~^ ERROR  `type const` syntax is experimental [E0658]
+    //~^ ERROR `type const` syntax is experimental [E0658]
+    //~| ERROR associated `type const` are unstable [E0658]
 }
 
 impl Bar for bool {
     type const BAR: bool = false;
-    //~^ ERROR  `type const` syntax is experimental [E0658]
+    //~^ ERROR `type const` syntax is experimental [E0658]
+    //~| ERROR associated `type const` are unstable [E0658]
 }
 
-fn main() {
-
-}
+fn main() { }

tests/ui/feature-gates/feature-gate-mgca-type-const-syntax.stderr

@@ -1,5 +1,5 @@
 error[E0658]: `type const` syntax is experimental
-  --> $DIR/feature-gate-mgca-type-const-syntax.rs:5:1
+  --> $DIR/feature-gate-mgca-type-const-syntax.rs:1:1
    |
 LL | type const FOO: u8 = 10;
    | ^^^^^^^^^^
@@ -9,7 +9,7 @@ LL | type const FOO: u8 = 10;
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: `type const` syntax is experimental
-  --> $DIR/feature-gate-mgca-type-const-syntax.rs:9:5
+  --> $DIR/feature-gate-mgca-type-const-syntax.rs:6:5
    |
 LL |     type const BAR: bool;
    |     ^^^^^^^^^^
@@ -19,7 +19,7 @@ LL |     type const BAR: bool;
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: `type const` syntax is experimental
-  --> $DIR/feature-gate-mgca-type-const-syntax.rs:14:5
+  --> $DIR/feature-gate-mgca-type-const-syntax.rs:12:5
    |
 LL |     type const BAR: bool = false;
    |     ^^^^^^^^^^
@@ -28,6 +28,36 @@ LL |     type const BAR: bool = false;
    = help: add `#![feature(mgca_type_const_syntax)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
-error: aborting due to 3 previous errors
+error[E0658]: top-level `type const` are unstable
+  --> $DIR/feature-gate-mgca-type-const-syntax.rs:1:1
+   |
+LL | type const FOO: u8 = 10;
+   | ^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: see issue #132980 <https://github.com/rust-lang/rust/issues/132980> for more information
+   = help: add `#![feature(min_generic_const_args)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+
+error[E0658]: associated `type const` are unstable
+  --> $DIR/feature-gate-mgca-type-const-syntax.rs:6:5
+   |
+LL |     type const BAR: bool;
+   |     ^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: see issue #132980 <https://github.com/rust-lang/rust/issues/132980> for more information
+   = help: add `#![feature(min_generic_const_args)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+
+error[E0658]: associated `type const` are unstable
+  --> $DIR/feature-gate-mgca-type-const-syntax.rs:12:5
+   |
+LL |     type const BAR: bool = false;
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: see issue #132980 <https://github.com/rust-lang/rust/issues/132980> for more information
+   = help: add `#![feature(min_generic_const_args)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+
+error: aborting due to 6 previous errors
 
 For more information about this error, try `rustc --explain E0658`.