[binutils-gdb] Fix type of check_valid_shift_count parameter

[Tom Tromey]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9d834fcaa141705738d3322a753358f845dd8bbc

commit 9d834fcaa141705738d3322a753358f845dd8bbc
Author: Tom Tromey <tromey@adacore.com>
Date:   Wed Mar 1 13:58:50 2023 -0700

    Fix type of check_valid_shift_count parameter
    
    check_valid_shift_count has an 'int' parameter that really should be
    an enum exp_opcode.  This patch makes the change.  Tested by
    rebuilding.

Diff:
---
 gdb/valarith.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gdb/valarith.c b/gdb/valarith.c
index 070ee63808e..6ea0cd9e8d1 100644
--- a/gdb/valarith.c
+++ b/gdb/valarith.c
@@ -1102,7 +1102,7 @@ type_length_bits (type *type)
    false, or errors out.  Returns true if valid.  */
 
 static bool
-check_valid_shift_count (int op, type *result_type,
+check_valid_shift_count (enum exp_opcode op, type *result_type,
 			 type *shift_count_type, ULONGEST shift_count)
 {
   if (!shift_count_type->is_unsigned () && (LONGEST) shift_count < 0)