code: public void writeFieldInit(MethodVisitor mv) {
      Label l10 = new Label();
      mv.visitLabel(l10);
      mv.visitLineNumber(3, l10);
      mv.visitVarInsn(ALOAD, 0);
      mv.visitTypeInsn(NEW, internalName);
      mv.visitInsn(DUP);
      mv.visitLdcInsn(name);
      mv.visitVarInsn(ALOAD, 0);
      mv.visitMethodInsn(INVOKESPECIAL, internalName, "<init>", "(Ljava/lang/String;Ljava/lang/Object;)V", false);
      mv.visitFieldInsn(PUTFIELD, classInfo.getClassName(), name, desc);
    }
docs: Initialise the field (used by 'Alias' constructor).