src: put bootstrappers in lib/internal/bootstrap/

Create `lib/internal/bootstrap/` and put bootstrappers there:

Before:

```
lib/internal
├── ...
├── bootstrap_loaders.js
└── bootstrap_node.js
```

After:

```
lib/internal
├── ...
└── bootstrap
    ├── loaders.js
    └── node.js
```

PR-URL: https://github.com/nodejs/node/pull/19177
Refs: https://github.com/nodejs/node/pull/19112
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/node.gyp b/node.gyp
index 1b047fe9ac..06f0a3b57c 100644
--- a/node.gyp
+++ b/node.gyp
@@ -24,8 +24,8 @@
     'node_lib_target_name%': 'node_lib',
     'node_intermediate_lib_type%': 'static_library',
     'library_files': [
-      'lib/internal/bootstrap_loaders.js',
-      'lib/internal/bootstrap_node.js',
+      'lib/internal/bootstrap/loaders.js',
+      'lib/internal/bootstrap/node.js',
       'lib/async_hooks.js',
       'lib/assert.js',
       'lib/buffer.js',