make parts of rustc_typeck public

src/librustc_typeck/check/cast.rs

@@ -147,7 +147,7 @@ fn pointer_kind(
 }
 
 #[derive(Copy, Clone)]
-enum CastError {
+pub enum CastError {
     ErrorReported,
 
     CastToBool,
@@ -593,7 +593,7 @@ fn report_object_unsafe_cast(&self, fcx: &FnCtxt<'a, 'tcx>, did: DefId) {
     /// Checks a cast, and report an error if one exists. In some cases, this
     /// can return Ok and create type errors in the fcx rather than returning
     /// directly. coercion-cast is handled in check instead of here.
-    fn do_check(&self, fcx: &FnCtxt<'a, 'tcx>) -> Result<CastKind, CastError> {
+    pub fn do_check(&self, fcx: &FnCtxt<'a, 'tcx>) -> Result<CastKind, CastError> {
         use rustc_middle::ty::cast::CastTy::*;
         use rustc_middle::ty::cast::IntTy::*;
 

src/librustc_typeck/check/mod.rs

@@ -67,7 +67,7 @@
 pub mod _match;
 mod autoderef;
 mod callee;
-mod cast;
+pub mod cast;
 mod closure;
 pub mod coercion;
 mod compare_method;

src/librustc_typeck/lib.rs

@@ -74,11 +74,11 @@
 #[macro_use]
 extern crate rustc_middle;
 
-// This is used by Clippy.
+// These are used by Clippy.
 pub mod expr_use_visitor;
+pub mod check;
 
 mod astconv;
-mod check;
 mod check_unused;
 mod coherence;
 mod collect;