-Wpointer-sign: cp-valprint.c.

-Wpointer-sign: cp-valprint.c.

Fix:

../../src/gdb/cp-valprint.c: In function ‘cp_print_class_member’:
../../src/gdb/cp-valprint.c:793:3: error: pointer targets in passing argument 2 of ‘cp_find_class_member’ differ in signedness [-Werror=pointer-sign]
../../src/gdb/cp-valprint.c:721:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’

'fieldno' is used throughout as 'int', so just follow the trend.

gdb/
2013-04-19  Pedro Alves  <palves@redhat.com>

	* cp-valprint.c (cp_print_class_member): Change type of 'fieldno'
	local to int.