PR python/11948:

	PR python/11948:
	* varobj.c (value_get_print_value): Use val_print_string to print
	lazy strings.
	* python/py-prettyprint.c (print_string_repr): Use
	val_print_string to print lazy strings.  Fix cleanup logic.
	(print_children): Likewise.
	* python/python-internal.h (gdbpy_extract_lazy_string): Update.
	* python/py-lazy-string.c (gdbpy_extract_lazy_string): Rewrite.
	Change return type to 'void', add 'addr' argument.
	* value.h (val_print_string): Update.
	* valprint.c (val_print_string): Add 'encoding' argument.
	* printcmd.c (print_formatted): Update.
	* p-valprint.c (pascal_val_print): Update.
	* m2-valprint.c (print_unpacked_pointer): Update.
	(m2_print_array_contents): Likewise.
	* jv-valprint.c (java_value_print): Update.
	* f-valprint.c (f_val_print): Update.
	* c-valprint.c (c_val_print): Update.
	* auxv.c (fprint_target_auxv): Update.