Test that safe items fail even with feature(unsafe_extern_blocks)

Author: spastorino

tests/ui/rust-2024/safe-outside-extern-with-feature.rs

@@ -0,0 +1,9 @@
+#![feature(unsafe_extern_blocks)]
+
+safe fn foo() {}
+//~^ ERROR: items cannot be declared with `safe` safety qualifier
+
+safe static FOO: i32 = 1;
+//~^ ERROR: items cannot be declared with `safe` safety qualifier
+
+fn main() {}

tests/ui/rust-2024/safe-outside-extern-with-feature.stderr

@@ -0,0 +1,14 @@
+error: items cannot be declared with `safe` safety qualifier
+  --> $DIR/safe-outside-extern-with-feature.rs:3:1
+   |
+LL | safe fn foo() {}
+   | ^^^^^^^^^^^^^^^^
+
+error: items cannot be declared with `safe` safety qualifier
+  --> $DIR/safe-outside-extern-with-feature.rs:6:1
+   |
+LL | safe static FOO: i32 = 1;
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 2 previous errors
+