Import rasta tests.

pkg/fasta/test/rasta/issue_000067.dart.dartk.expect

+library;
+import self as self;
+import "dart:core" as core;
+import "package:expect/expect.dart" as exp;
+
+class A extends core::Object {
+  constructor •() → dynamic
+    : super core::Object::•() {}
+  static factory foo() → self::A
+    invalid-statement;
+  method m() → core::int {}
+}
+class C extends self::A {
+  constructor •() → dynamic
+    : super self::A::•() {}
+  static factory bar() → self::C
+    invalid-statement;
+  method m() → core::int {
+    return 1;
+  }
+}
+class D extends self::C {
+  constructor •() → self::D
+    : super self::C::•();
+  method m() → core::int {
+    return 2;
+  }
+}
+static method main() → dynamic {
+  self::A a = new self::D::•();
+  exp::Expect::equals(2, a.m());
+}