x86insn: fix msvc error
x86insn: fix msvc error

ijsf/OpenWebRTC-orc,ijsf/OpenWebRTC-orc,ijsf/OpenWebRTC-orc,Distrotech/orc,MOXfiles/orc,mojaves/orc,okuoku/nmosh-orc,MOXfiles/orc,MOXfiles/orc,Distrotech/orc,jpakkane/orc,ahmedammar/platform_external_gst_liborc,okuoku/nmosh-orc,mojaves/orc,mojaves/orc,jpakkane/orc,ahmedammar/platform_external_gst_liborc,okuoku/nmosh-orc,Distrotech/orc,jpakkane/orc