message: [XLA] Make ScatterExpander methods 'protected' to enable overriding them in a subclass.
diff: @@ -25,7 +25,7 @@ class ScatterExpander : public HloModulePass {
  absl::string_view name() const override { return "scatter_expander"; }
  StatusOr<bool> Run(HloModule* module) override;
  - private:
  + protected:
  StatusOr<HloInstruction*> ExpandScatter(HloInstruction* scatter);
  };
  