is_negated_errno: merge x86_64 and x32 definitions
is_negated_errno: merge x86_64 and x32 definitions

* syscall.c (kernel_long_t, kernel_ulong_t): New types.
(is_negated_errno): Merge [X32] and [!X32] definitions.
(get_error): Merge [X86_64] and [X32] code.

Distrotech/strace,Distrotech/strace,MonkeyZZZZ/platform_external_strace,geofft/strace,geofft/strace,Yu-AndroidM/android_external_strace,geekboxzone/mmallow_external_strace,cuviper/strace,AOSP-YU/platform_external_strace,TeamExodus/external_strace,bigzz/strace_android,MonkeyZZZZ/platform_external_strace,Saruta/strace,AOSP-YU/platform_external_strace,geekboxzone/mmallow_external_strace,YUPlayGodDev/platform_external_strace,Saruta/strace,Infinitive-OS/platform_external_strace,cuviper/strace,geekboxzone/mmallow_external_strace,kapdop/android_external_strace,geofft/strace,Saruta/strace,Saruta/strace,YUPlayGodDev/platform_external_strace,kapdop/android_external_strace,AOSP-YU/platform_external_strace,Infinitive-OS/platform_external_strace,Yu-AndroidM/android_external_strace,TeamExodus/external_strace,kapdop/android_external_strace,cuviper/strace,Infinitive-OS/platform_external_strace,geekboxzone/mmallow_external_strace,bigzz/strace_android,kapdop/android_external_strace,Distrotech/strace,vrastogi/strace,Distrotech/strace,bigzz/strace_android,kapdop/android_external_strace,geofft/strace,Yu-AndroidM/android_external_strace,Yu-AndroidM/android_external_strace,geofft/strace,cuviper/strace,MonkeyZZZZ/platform_external_strace,vrastogi/strace,geekboxzone/mmallow_external_strace,YUPlayGodDev/platform_external_strace,TeamExodus/external_strace,TeamExodus/external_strace,Distrotech/strace,AOSP-YU/platform_external_strace,vrastogi/strace,Infinitive-OS/platform_external_strace,vrastogi/strace,MonkeyZZZZ/platform_external_strace,cuviper/strace,YUPlayGodDev/platform_external_strace,bigzz/strace_android,vrastogi/strace,YUPlayGodDev/platform_external_strace,Saruta/strace,Yu-AndroidM/android_external_strace,Infinitive-OS/platform_external_strace,bigzz/strace_android,MonkeyZZZZ/platform_external_strace,AOSP-YU/platform_external_strace,TeamExodus/external_strace