-Wpointer-sign: aarch64-tdep.c.

-Wpointer-sign: aarch64-tdep.c.

../../src/gdb/aarch64-tdep.c: In function ‘aarch64_analyze_prologue’:
../../src/gdb/aarch64-tdep.c:713:7: error: pointer targets in passing argument 3 of ‘decode_cb’ differ in signedness [-Werror=pointer-sign]
../../src/gdb/aarch64-tdep.c:386:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’
../../src/gdb/aarch64-tdep.c:747:7: error: pointer targets in passing argument 3 of ‘decode_stur’ differ in signedness [-Werror=pointer-sign]
../../src/gdb/aarch64-tdep.c:597:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’

'is64' is just used as a boolean; signed/unsigned doesn't really matter.

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

	* aarch64-tdep.c (aarch64_analyze_prologue): Change type of local
	'is64' to signed 'int'.