don't need __toModule when not bundling

internal/bundler/bundler_test.go

@@ -614,15 +614,15 @@ func TestImportFormsWithMinifyIdentifiersAndNoBundle(t *testing.T) {
 		expected: map[string]string{
 			"/out.js": `import "foo";
 import {} from "foo";
-import * as e from "foo";
-import {a as f, b as g} from "foo";
-import h from "foo";
-import j, * as i from "foo";
-import k, {a2 as l, b as m} from "foo";
-const n = [import("foo"), function a() {
+import * as a from "foo";
+import {a as b, b as c} from "foo";
+import d from "foo";
+import f, * as e from "foo";
+import g, {a2 as h, b as i} from "foo";
+const j = [import("foo"), function C() {
   return import("foo");
 }];
-console.log(e, f, g, h, j, i, k, l, m, n);
+console.log(a, b, c, d, f, e, g, h, i, j);
 `,
 		},
 	})

internal/bundler/linker.go

@@ -983,7 +983,7 @@ func (c *linkerContext) includeFile(sourceIndex uint32, entryPoint uint, distanc
 						// This is an ES6 import of a module that's potentially CommonJS
 						needsToModule = true
 					}
-				} else {
+				} else if !c.options.OutputFormat.KeepES6ImportExportSyntax() {
 					// This is an ES6 import of an external module that may be CommonJS
 					needsToModule = true
 				}

scripts/js-api-tests.js

@@ -47,6 +47,26 @@ let buildTests = {
 }
 
 let transformTests = {
+  async cjs_require({ service }) {
+    const { js } = await service.transform(`const {foo} = require('path')`, {})
+    assert.strictEqual(js, `const {foo} = require("path");\n`)
+  },
+
+  async cjs_exports({ service }) {
+    const { js } = await service.transform(`exports.foo = 123`, {})
+    assert.strictEqual(js, `exports.foo = 123;\n`)
+  },
+
+  async es6_import({ service }) {
+    const { js } = await service.transform(`import {foo} from 'path'`, {})
+    assert.strictEqual(js, `import {foo} from "path";\n`)
+  },
+
+  async es6_export({ service }) {
+    const { js } = await service.transform(`export const foo = 123`, {})
+    assert.strictEqual(js, `export const foo = 123;\n`)
+  },
+
   async jsx({ service }) {
     const { js } = await service.transform(`console.log(<div/>)`, { loader: 'jsx' })
     assert.strictEqual(js, `console.log(React.createElement("div", null));\n`)