chore: reduce visibility of current_witness_index

Author: TomAFrench

compiler/noirc_evaluator/src/acir/acir_context/generated_acir/mod.rs

@@ -96,7 +96,7 @@ pub(crate) type BrilligProcedureRangeMap = BTreeMap<ProcedureDebugId, (usize, us
 
 impl<F: AcirField> GeneratedAcir<F> {
     /// Returns the current witness index.
-    pub fn current_witness_index(&self) -> Witness {
+    pub(crate) fn current_witness_index(&self) -> Witness {
         Witness(self.current_witness_index.unwrap_or(0))
     }
 

compiler/noirc_frontend/src/node_interner/mod.rs

@@ -872,7 +872,7 @@ impl NodeInterner {
     ///
     /// Returns:
     /// * `Ok` if it was able to substitute the type, either because it's not an `impl Trait`
-    ///    or because the type of the body of the function is already known
+    ///   or because the type of the body of the function is already known
     /// * `Err` if the function returning the `impl Trait` needs to be elaborated first
     pub fn id_type_substitute_trait_as_type(&self, def_id: DefinitionId) -> Result<Type, FuncId> {
         let typ = self.definition_type(def_id);