repl: Tab complete when useGlobal is false

Fixes nodejs#7353

Author: princejwesley

lib/repl.js

@@ -586,6 +586,22 @@ REPLServer.prototype.createContext = function() {
   } else {
     context = vm.createContext();
     for (var i in global) context[i] = global[i];
+
+    // #7353 - tab complete returns fewer results
+    vm.runInContext(`
+      (function() {
+        for (const name of Object.getOwnPropertyNames(global)) {
+          this[name] = this[name];
+        }
+      })()
+    `, context);
+
+    for (const name of Object.keys(context)) {
+      Object.defineProperty(context, name, {
+        enumerable: global.propertyIsEnumerable(name)
+      });
+    }
+
     context.console = new Console(this.outputStream);
     context.global = context;
     context.global.global = context;

test/parallel/test-repl-tab-complete.js

@@ -260,3 +260,14 @@ putIn.run(['.clear']);
 testMe.complete('var log = console.lo', common.mustCall((error, data) => {
   assert.deepStrictEqual(data, [['console.log'], 'console.lo']);
 }));
+
+var testNonGlobal = repl.start({
+  input: putIn,
+  output: putIn,
+  useGlobal: false
+});
+
+testNonGlobal.complete('I', common.mustCall((error, data) => {
+  assert.deepStrictEqual(data, [['Infinity', '', 'Int16Array', 'Int32Array',
+                                 'Int8Array', 'Intl'], 'I']);
+}));