eliminate WHO arguments from interpreter-private functions * interpreter-private.h, inpterpreter-private.cc (__get_interpreter__, __get_dynamic_loader__, __get_error_system__, __get_gh_manager__, __get_help_system__, __get_input_system__, __get_load_path__, __get_load_save_system__, __get_event_manager__, __get_output_system__, __get_type_info__, __get_symbol_table__, __get_current_scope__, __require_current_scope__, __get_evaluator__, __get_bp_table__, __get_child_list__, __get_cdef_manager__, __get_display_info__, __get_gtk_manager__): Eliminate WHO argument. Previously, it was never displayed by __get_interpreter__. And, as pointed out by Petter Tomner in patch #10216, passing a std::string object could have performance issues. (__get_interpreter__): Eliminate useless call to error. Display message to std::cerr then abort.

--- a/libinterp/corefcn/ls-hdf5.cc	Tue Jun 21 15:44:03 2022 +0200
+++ b/libinterp/corefcn/ls-hdf5.cc	Wed Jun 22 12:48:59 2022 -0400
@@ -622,8 +622,7 @@
 
   args(0) = std::string (iftext_tmp);
 
-  octave::interpreter& interp
-    = octave::__get_interpreter__ ("load_inline_fcn");
+  octave::interpreter& interp = octave::__get_interpreter__ ();
 
   octave_value_list tmp = interp.feval ("inline", args, 1);
 
@@ -672,8 +671,7 @@
 
   std::string vname = name;
 
-  octave::type_info& type_info
-    = octave::__get_type_info__ ("hdf5_read_next_data_internal");
+  octave::type_info& type_info = octave::__get_type_info__ ();
 
   // Allow identifiers as all digits so we can load lists saved by
   // earlier versions of Octave.