[binutils-gdb] Fix two serious flake8 reports

[Tom Tromey <tromey@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=12d5d5bfd0201711ac3b14d8cd92589919a82b7a

commit 12d5d5bfd0201711ac3b14d8cd92589919a82b7a
Author: Tom Tromey <tromey@adacore.com>
Date:   Fri Feb 23 11:52:40 2024 -0700

    Fix two serious flake8 reports
    
    flake8 points out that some code in frame_filters.py is referring to
    undefined variables.
    
    In the first hunk, I've changed the code to match what other
    'complete' methods do in this file.
    
    In the second hunk, I've simply removed the try/except -- if
    get_filter_priority fails, it will raise GdbError, which is already
    handled properly by gdb.

Diff:
---
 gdb/python/lib/gdb/command/frame_filters.py | 25 ++++++++++---------------
 1 file changed, 10 insertions(+), 15 deletions(-)

diff --git a/gdb/python/lib/gdb/command/frame_filters.py b/gdb/python/lib/gdb/command/frame_filters.py
index 47045518e64..d774e194fba 100644
--- a/gdb/python/lib/gdb/command/frame_filters.py
+++ b/gdb/python/lib/gdb/command/frame_filters.py
@@ -445,7 +445,7 @@ class ShowFrameFilterPriority(gdb.Command):
         if text.count(" ") == 0:
             return _complete_frame_filter_list(text, word, False)
         else:
-            printer_list = frame._return_list(text.split()[0].rstrip())
+            printer_list = gdb.frames.return_list(text.split()[0].rstrip())
             return _complete_frame_filter_name(word, printer_list)
 
     def invoke(self, arg, from_tty):
@@ -454,20 +454,15 @@ class ShowFrameFilterPriority(gdb.Command):
             return
         filter_name = command_tuple[1]
         list_name = command_tuple[0]
-        try:
-            priority = self.get_filter_priority(list_name, filter_name)
-        except Exception:
-            e = sys.exc_info()[1]
-            print("Error printing filter priority for '" + name + "':" + str(e))
-        else:
-            print(
-                "Priority of filter '"
-                + filter_name
-                + "' in list '"
-                + list_name
-                + "' is: "
-                + str(priority)
-            )
+        priority = self.get_filter_priority(list_name, filter_name)
+        print(
+            "Priority of filter '"
+            + filter_name
+            + "' in list '"
+            + list_name
+            + "' is: "
+            + str(priority)
+        )
 
 
 # Register commands