Make internal lints allow-by-default

Author: flip1995

src/librustc/lint/internal.rs

@@ -11,7 +11,7 @@ use syntax::ast::Ident;
 
 declare_lint! {
     pub DEFAULT_HASH_TYPES,
-    Warn,
+    Allow,
     "forbid HashMap and HashSet and suggest the FxHash* variants"
 }
 
@@ -64,7 +64,7 @@ impl EarlyLintPass for DefaultHashTypes {
 
 declare_lint! {
     pub USAGE_OF_TY_TYKIND,
-    Warn,
+    Allow,
     "Usage of `ty::TyKind` outside of the `ty::sty` module"
 }
 

src/librustc_interface/util.rs

@@ -109,6 +109,7 @@ pub fn create_session(
     let codegen_backend = get_codegen_backend(&sess);
 
     rustc_lint::register_builtins(&mut sess.lint_store.borrow_mut(), Some(&sess));
+    rustc_lint::register_internals(&mut sess.lint_store.borrow_mut(), Some(&sess));
 
     let mut cfg = config::build_configuration(&sess, config::to_crate_config(cfg));
     add_configuration(&mut cfg, &sess, &*codegen_backend);