Use BASE_EQ instead of EQ for some uninterned symbols

Use BASE_EQ instead of EQ for some uninterned symbols

* src/editfns.c (labeled_restrictions_pop, Fwiden):
* src/eval.c (lexbound_p, Fbacktrace__locals):
* src/fileio.c (Finsert_file_contents):
* src/fns.c (Fyes_or_no_p):
* src/keyboard.c (command_loop_1):
Use BASE_EQ for comparing with Qoutermost_restriction,
Qinternal_interpreter_environment and Qunbound as uninterned
symbols won't be EQ to a symbol-with-pos.