Fix preloading of modules (#258)

Author: Jontem

src/_bin.ts

@@ -161,9 +161,7 @@ const service = register({
 })
 
 // Require specified modules before start-up.
-for (const id of arrify(argv.require)) {
-  Module._load(id)
-}
+;(Module as any)._preloadModules(arrify(argv.require))
 
 /**
  * Eval helpers.

src/index.spec.ts

@@ -169,6 +169,15 @@ describe('ts-node', function () {
         return done()
       })
     })
+
+    it('should support require from node modules', function (done) {
+      exec(`${BIN_EXEC} -r typescript -e "console.log('success')"`, function (err, stdout) {
+        expect(err).to.not.exist
+        expect(stdout).to.equal('success\n')
+
+        return done()
+      })
+    })
   })
 
   describe('register', function () {