[CodeGen] Print frame-setup/destroy flags in -debug output like we do in MIR

Currently the MachineInstr::print function prints the
frame-setup/frame-destroy differently than it does in MIR.

Instead of:

  %x21 = LDR %sp, -16; flags: FrameDestroy

print:

  %x21 = frame-destroy LDR %sp, -16

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@322088 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed