Check in codegen test expectations.

test/codegen/expect/language/main_not_a_function_test_01_multi.js

Index: test/codegen/expect/language/main_not_a_function_test_01_multi.js
diff --git a/test/codegen/expect/language/main_not_a_function_test_01_multi.js b/test/codegen/expect/language/main_not_a_function_test_01_multi.js
new file mode 100644
index 0000000000000000000000000000000000000000..920861eacc81f2c9a58bc262649def9bcac005ff
--- /dev/null
+++ b/test/codegen/expect/language/main_not_a_function_test_01_multi.js
@@ -0,0 +1,12 @@
+dart_library.library('language/main_not_a_function_test_01_multi', null, /* Imports */[
+  'dart_sdk'
+], function load__main_not_a_function_test_01_multi(exports, dart_sdk) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const main_not_a_function_test_01_multi = Object.create(null);
+  main_not_a_function_test_01_multi.main = null;
+  // Exports:
+  exports.main_not_a_function_test_01_multi = main_not_a_function_test_01_multi;
+});