public final boolean isClassInit() {
    return getNat().isClassInit();
  }
Gets whether this is a reference to a class initialization method. This is just a convenient
shorthand for {@code getNat().isClassInit()}.

@return {@code true} iff this is a reference to an instance initialization method
android/android_framework/dex-maker/src/main/java/com/android/dx/rop/cst/CstBaseMethodRef.java