ensure @node require loads correctly from cwd

lib/core.js

@@ -114,6 +114,24 @@ function baseURLResolve(loader, name) {
   return new URL(name, getBaseURLObj.call(loader)).href;
 }
 
+function getNodeModule(name) {
+  if (!isPlain(name))
+    throw new Error('Node module ' + name + ' can\'t be loaded as it is not a package require.');
+
+  var nodePath = this._nodeRequire('path');
+  // try to load from node_modules
+  var module;
+  try {
+    module = this._nodeRequire(nodePath.resolve(process.cwd(), 'node_modules', name));
+  }
+  catch(e) {
+    // fall back to direct require (in theory this is core modules only, which should really be filtered)
+    if (e.code == 'MODULE_NOT_FOUND')
+      module = this._nodeRequire(name);
+  }
+  return module;
+}
+
 function coreResolve(name, parentName) {
   // standard URL resolution
   if (!isPlain(name))
@@ -135,9 +153,7 @@ function coreResolve(name, parentName) {
   if (name.substr(0, 6) == '@node/') {
     if (!this._nodeRequire)
       throw new TypeError('Error loading ' + name + '. Can only load node core modules in Node.');
-    if (!isPlain(name.substr(6)))
-      throw new Error('Node module ' + name.substr(6) + ' can\'t be loaded as it is not a package require.');
-    this.set(name, this.newModule(getESModule(this._nodeRequire(name.substr(6)))));
+    this.set(name, this.newModule(getESModule(getNodeModule.call(this, name.substr(6)))));
     return name;
   }