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

tests_lit/assembler/arm32/store-sf.ll

 ; Sample program that generates "str reg, [fp, #CCCC]", to show that we
 ; recognize that "fp" should be used instead of "sp".
 
 ; REQUIRES: allow_dump
 
 ; Compile using standalone assembler.
 ; RUN: %p2i --filetype=asm -i %s --target=arm32 --args -Om1 \
 ; RUN:   | FileCheck %s --check-prefix=ASM
 
 ; Show bytes in assembled standalone code.
 ; RUN: %p2i --filetype=asm -i %s --target=arm32 --assemble --disassemble \
 ; RUN:   --args -Om1 | FileCheck %s --check-prefix=DIS
 
 ; Compile using integrated assembler.
 ; RUN: %p2i --filetype=iasm -i %s --target=arm32 --args -Om1 \
-; RUN:   -unsafe-ias | FileCheck %s --check-prefix=IASM
+; RUN:   | FileCheck %s --check-prefix=IASM
 
 ; Show bytes in assembled integrated code.
 ; RUN: %p2i --filetype=iasm -i %s --target=arm32 --assemble --disassemble \
-; RUN:   --args -Om1 -unsafe-ias | FileCheck %s --check-prefix=DIS
+; RUN:   --args -Om1 | FileCheck %s --check-prefix=DIS
 
 define internal void @test_vla_in_loop(i32 %n) {
 ; ASM-LABEL: test_vla_in_loop:
 ; DIS-LABEL: 00000000 <test_vla_in_loop>:
 ; IASM-LABEL: test_vla_in_loop:
 
 entry:
 
 ; ASM-NEXT: .Ltest_vla_in_loop$entry:
 ; IASM-NEXT: .Ltest_vla_in_loop$entry:
@@ skipping 37 matching lines @@
 ; IASM-NEXT:    .byte 0xff
 ; IASM-NEXT:    .byte 0xea
 
 ; Put the variable-length alloca in a non-entry block, to reduce the
 ; chance the optimizer putting it before the regular frame creation.
 
 next:
   %v = alloca i8, i32 %n, align 4
   ret void
 }