reduce visibility in some pp functions

Author: lqd

compiler/rustc_middle/src/mir/pretty.rs

@@ -498,7 +498,7 @@ impl Debug for VarDebugInfo<'_> {
 
 /// Write out a human-readable textual representation of the MIR's `fn` type and the types of its
 /// local variables (both user-defined bindings and compiler temporaries).
-pub fn write_mir_intro<'tcx>(
+fn write_mir_intro<'tcx>(
     tcx: TyCtxt<'tcx>,
     body: &Body<'_>,
     w: &mut dyn io::Write,
@@ -701,7 +701,7 @@ pub fn dump_mir_def_ids(tcx: TyCtxt<'_>, single: Option<DefId>) -> Vec<DefId> {
 // Basic blocks and their parts (statements, terminators, ...)
 
 /// Write out a human-readable textual representation for the given basic block.
-pub fn write_basic_block<'tcx, F>(
+fn write_basic_block<'tcx, F>(
     tcx: TyCtxt<'tcx>,
     block: BasicBlock,
     body: &Body<'tcx>,