[PATCH] gdb: some int to unsigned int conversion

[Enze Li <enze.li@hotmail.com>]

When building GDB with clang 16, I got this,

  CXX    maint.o
maint.c:1045:23: error: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Werror,-Wsingle-bit-bitfield-constant-conversion]
      m_space_enabled = 1;
                      ^ ~
maint.c:1057:22: error: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Werror,-Wsingle-bit-bitfield-constant-conversion]
      m_time_enabled = 1;
                     ^ ~
maint.c:1073:24: error: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Werror,-Wsingle-bit-bitfield-constant-conversion]
      m_symtab_enabled = 1;
                       ^ ~
3 errors generated.

Work around this by using unsigned int instead.

Tested by rebuilding on x86_64-linux with clang 16 and gcc 12.
---
 gdb/maint.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gdb/maint.h b/gdb/maint.h
index 09a68c17befd..71f63b2e39be 100644
--- a/gdb/maint.h
+++ b/gdb/maint.h
@@ -49,9 +49,9 @@ class scoped_command_stats
   /* Track whether the stat was enabled at the start of the command
      so that we can avoid printing anything if it gets turned on by
      the current command.  */
-  int m_time_enabled : 1;
-  int m_space_enabled : 1;
-  int m_symtab_enabled : 1;
+  unsigned int m_time_enabled : 1;
+  unsigned int m_space_enabled : 1;
+  unsigned int m_symtab_enabled : 1;
   run_time_clock::time_point m_start_cpu_time;
   std::chrono::steady_clock::time_point m_start_wall_time;
   long m_start_space;

base-commit: 76f8ef8d53792ef89aee7a51b94bc7d1cf324379
-- 
2.39.0