private SsaInsn getMoveForInsn(SsaInsn insn) {
    int succ = insn.getBlock().getSuccessors().nextSetBit(0);
    ArrayList<SsaInsn> succInsns = ssaMeth.getBlocks().get(succ).getInsns();
    return succInsns.get(0);
  }
Finds the corresponding move result for a given instruction

@param insn {@code non-null;} an instruction that must always be followed by a move result
@return {@code non-null;} the move result for the given instruction
android/android_framework/dex-maker/src/main/java/com/android/dx/ssa/EscapeAnalysis.java