Try to handle dist-dev vs dist-prod for implicit modules

Author: NullVoxPopuli

lib/index.js

@@ -53,6 +53,8 @@ const shim = addonV1Shim(path.join(__dirname, '..'), {
       /* This whole hook is an ember-auto-import feature that only effects classic builds, not embroider builds. */
 
       if (useEmberModules) {
+        const isProduction = process.env.EMBER_ENV === 'production';
+
         // this is our forward-compatible mode where all of ember-source is
         // handled by ember-auto-import, like a normal v2 addon.
         //
@@ -200,7 +202,7 @@ const shim = addonV1Shim(path.join(__dirname, '..'), {
             './dist-dev/packages/route-recognizer/index.js',
             './dist-dev/packages/router_js/index.js',
             './dist-dev/packages/rsvp/index.js',
-          ],
+          ].map((x) => (isProduction ? x.replace('/dist-dev/', '/dist-prod/') : x)),
           'implicit-test-modules': [
             './dist-dev/packages/ember-testing/index.js',
             './dist-dev/packages/ember-testing/lib/adapters/adapter.js',
@@ -226,7 +228,7 @@ const shim = addonV1Shim(path.join(__dirname, '..'), {
             './dist-dev/packages/ember-testing/lib/test/promise.js',
             './dist-dev/packages/ember-testing/lib/test/run.js',
             './dist-dev/packages/ember-testing/lib/test/waiters.js',
-          ],
+          ].map((x) => (isProduction ? x.replace('/dist-dev/', '/dist-prod/') : x)),
         };
       } else {
         // this is our backward-compatible mode that actually keeps most of ember-source in vendor.js.