Test that .dart files are copied to packages/ in debug mode.

sdk/lib/_internal/pub/test/build/includes_dart_files_from_dependencies_in_debug_test.dart

Index: sdk/lib/_internal/pub/test/build/includes_dart_files_from_dependencies_in_debug_test.dart
diff --git a/sdk/lib/_internal/pub/test/build/includes_assets_from_dependencies_in_lib_test.dart b/sdk/lib/_internal/pub/test/build/includes_dart_files_from_dependencies_in_debug_test.dart
similarity index 53%
copy from sdk/lib/_internal/pub/test/build/includes_assets_from_dependencies_in_lib_test.dart
copy to sdk/lib/_internal/pub/test/build/includes_dart_files_from_dependencies_in_debug_test.dart
index 6af3a816f54aba0c86015ca10e68831b40a10fff..f8a719b6dc4fbeb6841d7dc4f723557d4d169a59 100644
--- a/sdk/lib/_internal/pub/test/build/includes_assets_from_dependencies_in_lib_test.dart
+++ b/sdk/lib/_internal/pub/test/build/includes_dart_files_from_dependencies_in_debug_test.dart
@@ -10,7 +10,7 @@ import '../test_pub.dart';
 main() {
   initConfig();
 
-  integration("includes assets from the 'lib' directory of dependencies", () {
+  integration("includes .dart files from dependencies in debug mode", () {
     // Dart2js can take a long time to compile dart code, so we increase the
     // timeout to cope with that.
     currentSchedule.timeout *= 3;
@@ -18,9 +18,9 @@ main() {
     d.dir("foo", [
       d.libPubspec("foo", "0.0.1"),
       d.dir("lib", [
-        d.file("foo.txt", "foo"),
+        d.file('foo.dart', 'foo() => print("hello");'),
         d.dir("sub", [
-          d.file("bar.txt", "bar"),
+          d.file('bar.dart', 'bar() => print("hello");'),
         ])
       ])
     ]).create();
@@ -30,45 +30,31 @@ main() {
         "foo": {"path": "../foo"}
       }),
       d.dir("example", [
-        d.file("index.html", "html"),
-      ]),
-      d.dir("web", [
-        d.file("index.html", "html"),
+        d.file("main.dart", 'myapp() => print("not entrypoint");'),
         d.dir("sub", [
-          d.file("index.html", "html")
+          d.file("main.dart", 'myapp() => print("not entrypoint");')
         ])
       ])
     ]).create();
 
-    schedulePub(args: ["build", "--all"],
-        output: new RegExp(r"Built 7 files!"));
+    schedulePub(args: ["build", "--mode", "debug", "example"],
+        output: new RegExp(r"Built 4 files!"));
 
     d.dir(appPath, [
       d.dir('build', [
         d.dir('example', [
-          d.file("index.html", "html"),
+          d.file("main.dart", 'myapp() => print("not entrypoint");'),
           d.dir('packages', [
             d.dir('foo', [
-              d.file('foo.txt', 'foo'),
-              d.dir('sub', [
-                d.file('bar.txt', 'bar'),
-              ]),
-            ])
-          ])
-        ]),
-        d.dir('web', [
-          d.file("index.html", "html"),
-          d.dir('packages', [
-            d.dir('foo', [
-              d.file('foo.txt', 'foo'),
-              d.dir('sub', [
-                d.file('bar.txt', 'bar'),
-              ]),
+              d.file('foo.dart', 'foo() => print("hello");'),
+              d.dir("sub", [
+                d.file('bar.dart', 'bar() => print("hello");'),
+              ])
             ])
           ]),
           d.dir("sub", [
-            d.file("index.html", "html"),
-            // "packages" should *only* be created in the top-level directory.
+            d.file("main.dart", 'myapp() => print("not entrypoint");'),
+            // Does *not* copy packages into subdirectories.
             d.nothing("packages")
           ])
         ])