[gcc r12-9975] libstdc++: Correctly call _string_types function

[Jonathan Wakely <redi@gcc.gnu.org>]

https://gcc.gnu.org/g:cf5a6d8aa97bc361503ecfb07a5562d8b231eac8

commit r12-9975-gcf5a6d8aa97bc361503ecfb07a5562d8b231eac8
Author: Tom Tromey <tromey@adacore.com>
Date:   Wed Oct 4 08:59:47 2023 -0600

    libstdc++: Correctly call _string_types function
    
    flake8 points out that the new call to _string_types from
    StdExpAnyPrinter.__init__ is not correct -- it needs to be qualified.
    
    libstdc++-v3/ChangeLog:
    
            * python/libstdcxx/v6/printers.py
            (StdExpAnyPrinter.__init__): Qualify call to
            _string_types.
    
    (cherry picked from commit 4bf77db70e2521dc89f9d7f51c7ae6e58a94b4f9)

Diff:
---
 libstdc++-v3/python/libstdcxx/v6/printers.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/python/libstdcxx/v6/printers.py b/libstdc++-v3/python/libstdcxx/v6/printers.py
index 51995b93806..ee25253d004 100644
--- a/libstdc++-v3/python/libstdcxx/v6/printers.py
+++ b/libstdc++-v3/python/libstdcxx/v6/printers.py
@@ -1298,7 +1298,7 @@ class StdExpAnyPrinter(SingleObjContainerPrinter):
             # FIXME need to expand 'std::string' so that gdb.lookup_type works
             if 'std::string' in mgrname:
                 mgrtypes = []
-                for s in _string_types():
+                for s in StdExpAnyPrinter._string_types():
                     try:
                         x = re.sub(r"std::string(?!\w)", s, m.group(1))
                         # The following lookup might raise gdb.error if the