Remove crate visibility usage in compiler

compiler/rustc_trait_selection/src/traits/chalk_fulfill.rs

@@ -17,7 +17,7 @@ pub struct FulfillmentContext<'tcx> {
 }
 
 impl FulfillmentContext<'_> {
-    crate fn new() -> Self {
+    pub(crate) fn new() -> Self {
         FulfillmentContext {
             obligations: FxIndexSet::default(),
             relationships: FxHashMap::default(),

compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs

@@ -1488,7 +1488,7 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
         expected_ref: ty::PolyTraitRef<'tcx>,
         found: ty::PolyTraitRef<'tcx>,
     ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> {
-        crate fn build_fn_sig_string<'tcx>(
+        pub(crate) fn build_fn_sig_string<'tcx>(
             tcx: TyCtxt<'tcx>,
             trait_ref: ty::PolyTraitRef<'tcx>,
         ) -> String {

compiler/rustc_trait_selection/src/traits/project.rs

@@ -2116,7 +2116,7 @@ fn assoc_def(
     }
 }
 
-crate trait ProjectionCacheKeyExt<'cx, 'tcx>: Sized {
+pub(crate) trait ProjectionCacheKeyExt<'cx, 'tcx>: Sized {
     fn from_poly_projection_predicate(
         selcx: &mut SelectionContext<'cx, 'tcx>,
         predicate: ty::PolyProjectionPredicate<'tcx>,

compiler/rustc_trait_selection/src/traits/select/mod.rs

@@ -332,7 +332,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
         }
     }
 
-    crate fn select_from_obligation(
+    pub(crate) fn select_from_obligation(
         &mut self,
         obligation: &TraitObligation<'tcx>,
     ) -> SelectionResult<'tcx, SelectionCandidate<'tcx>> {

compiler/rustc_trait_selection/src/traits/specialize/mod.rs

@@ -486,7 +486,7 @@ fn report_conflicting_impls(
 
 /// Recovers the "impl X for Y" signature from `impl_def_id` and returns it as a
 /// string.
-crate fn to_pretty_impl_header(tcx: TyCtxt<'_>, impl_def_id: DefId) -> Option<String> {
+pub(crate) fn to_pretty_impl_header(tcx: TyCtxt<'_>, impl_def_id: DefId) -> Option<String> {
     use std::fmt::Write;
 
     let trait_ref = tcx.impl_trait_ref(impl_def_id)?;