@Override
          public int compare(LocalList.Entry a, LocalList.Entry b) {
            return a.getRegister() - b.getRegister();
          }
Extracts method arguments from a locals list. These will be collected from the input list and
sorted by ascending register in the returned list.

@return list of non-{@code this} method argument locals, sorted by ascending register
android/android_framework/dex-maker/src/main/java/com/android/dx/dex/file/DebugInfoEncoder.java