Import rasta tests.

pkg/fasta/test/rasta/duplicated_mixin.dart.outline.expect

Index: pkg/fasta/test/rasta/duplicated_mixin.dart.outline.expect
diff --git a/pkg/fasta/test/rasta/duplicated_mixin.dart.outline.expect b/pkg/fasta/test/rasta/duplicated_mixin.dart.outline.expect
new file mode 100644
index 0000000000000000000000000000000000000000..c82df797e40363001bb46ec0a3bcb3255b156b01
--- /dev/null
+++ b/pkg/fasta/test/rasta/duplicated_mixin.dart.outline.expect
@@ -0,0 +1,23 @@
+library;
+import self as self;
+import "dart:core" as core;
+
+class Mixin extends core::Object {
+  field dynamic field;
+  constructor •() → self::Mixin
+    : super core::Object::•();
+}
+class A extends self::Object+Mixin+Mixin#0 {
+  constructor •() → self::A
+    : super self::Object+Mixin+Mixin#0::•();
+}
+abstract class Object+Mixin+Mixin#0 extends self::Object+Mixin#0 implements self::Mixin {
+  field dynamic field;
+  constructor •() → dynamic
+    : super self::Object+Mixin#0::•();
+}
+abstract class Object+Mixin#0 extends core::Object implements self::Mixin {
+  field dynamic field;
+  constructor •() → dynamic
+    : super core::Object::•();
+}