moved renamed docs stderr | crate_type_flag.rs

Author: Kivooeo

tests/ui/crate_type_flag.rs renamed to tests/ui/linking/crate-type-invalid-flag-error.rs

@@ -1,3 +1,5 @@
+// Test for #70183 that --crate-type flag display valid value.
+
 //@ compile-flags: --crate-type dynlib
 
 fn main() {}