void onInsnAdded(SsaInsn insn) {
    onSourcesChanged(insn, null);
    updateOneDefinition(insn, null);
  }
Adds an insn to both the use and def lists. For use when adding a new insn to the method.

@param insn {@code non-null;} insn to add
android/android_framework/dex-maker/src/main/java/com/android/dx/ssa/SsaMethod.java