Add warn-by-default lint for local binding shadowing exported glob re-export item

compiler/rustc_middle/src/ty/mod.rs

@@ -53,7 +53,6 @@ use rustc_span::symbol::{kw, sym, Ident, Symbol};
 use rustc_span::{ExpnId, ExpnKind, Span};
 use rustc_target::abi::{Align, FieldIdx, Integer, IntegerType, VariantIdx};
 pub use rustc_target::abi::{ReprFlags, ReprOptions};
-use rustc_type_ir::WithCachedTypeInfo;
 pub use subst::*;
 pub use vtable::*;
 
@@ -145,6 +144,7 @@ mod opaque_types;
 mod parameterized;
 mod rvalue_scopes;
 mod structural_impls;
+#[cfg_attr(not(bootstrap), allow(hidden_glob_reexports))]
 mod sty;
 mod typeck_results;