public void debugDump() {
    for (int label = 0; label < blockStarts.length; label++) {
      if (blockStarts[label] == null) {
        continue;
      }

      if (blockStarts[label] == emptySet) {
        System.out.printf("%04x: empty set\n", label);
      } else {
        System.out.printf("%04x: %s\n", label, blockStarts[label]);
      }
    }
  }
Gets the number of assignments recorded by this instance.

@return {@code >= 0;} the number of assignments
android/android_framework/dex-maker/src/main/java/com/android/dx/rop/code/LocalVariableInfo.java