Fix name resolution of shadowed builtin macro

crates/test-utils/src/minicore.rs

@@ -63,6 +63,7 @@
 //!     unsize: sized
 //!     todo: panic
 //!     unimplemented: panic
+//!     column:
 
 #![rustc_coherence_is_core]
 
@@ -1617,6 +1618,14 @@ pub mod error {
 }
 // endregion:error
 
+// region:column
+#[rustc_builtin_macro]
+#[macro_export]
+macro_rules! column {
+    () => {};
+}
+// endregion:column
+
 pub mod prelude {
     pub mod v1 {
         pub use crate::{