Fix translation of instruction "move" in ARM integrated assembler.

tests_lit/assembler/arm32/push-pop.ll

 ; Show that we know how to translate push and pop.
 ; TODO(kschimpf) Translate pop instructions.
 
 ; NOTE: We use -O2 to get rid of memory stores.
 
 ; REQUIRES: allow_dump
 
 ; Compile using standalone assembler.
 ; RUN: %p2i --filetype=asm -i %s --target=arm32 --args -O2 -allow-extern \
 ; RUN:   | FileCheck %s --check-prefix=ASM
 
 ; Show bytes in assembled standalone code.
 ; RUN: %p2i --filetype=asm -i %s --target=arm32 --assemble --disassemble \
 ; RUN:   --args -O2 -allow-extern | FileCheck %s --check-prefix=DIS
 
 ; Compile using integrated assembler.
-; RUN: %p2i --filetype=iasm -i %s --target=arm32 --args -O2 -unsafe-ias \
+; RUN: %p2i --filetype=iasm -i %s --target=arm32 --args -O2 \
 ; RUN:   -allow-extern | FileCheck %s --check-prefix=IASM
 
 ; Show bytes in assembled integrated code.
 ; RUN: %p2i --filetype=iasm -i %s --target=arm32 --assemble --disassemble \
-; RUN:   --args -O2 -unsafe-ias -allow-extern | FileCheck %s --check-prefix=DIS
+; RUN:   --args -O2 -allow-extern | FileCheck %s --check-prefix=DIS
 
 declare external void @DoSomething()
 
 define internal void @SinglePushPop() {
   call void @DoSomething();
   ret void       
 }
 
 ; ASM-LABEL:SinglePushPop:
 ; ASM-NEXT:.LSinglePushPop$__0:
@@ skipping 119 matching lines @@
 
 ; IASM-NEXT:    .byte 0x30
 ; IASM-NEXT:    .byte 0x40
 ; IASM-NEXT:    .byte 0xbd
 ; IASM-NEXT:    .byte 0xe8
 
 ; IASM:         .byte 0x1e
 ; IASM-NEXT:    .byte 0xff
 ; IASM-NEXT:    .byte 0x2f
 ; IASM-NEXT:    .byte 0xe1