In RN v0.58.3 the module Subscribable's path changed ?why it not in node_modules/React-Native/Libraries/Components/?

Environment

React Native Environment Info:
System:
OS: macOS High Sierra 10.13.4
CPU: (8) x64 Intel(R) Core(TM) i7-4750HQ CPU @ 2.00GHz
Memory: 27.82 MB / 8.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 11.6.0 - /usr/local/bin/node
npm: 6.7.0 - /usr/local/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
SDKs:
Android SDK:
API Levels: 22, 23, 24, 25, 26, 27, 28
Build Tools: 23.0.1, 23.0.3, 27.0.3, 28.0.3
System Images: android-28 | Google APIs Intel x86 Atom
IDEs:
Xcode: /undefined - /usr/bin/xcodebuild
npmPackages:
react: ^16.6.3 => 16.7.0
react-native: ^0.58.3 => 0.58.3
npmGlobalPackages:
react-native-cli: 2.0.1

Description

Just upgrade RN to 0.58.3 from 0.38 to solve other problem，but now I have more problems。。。

Reproducible Demo