Import rasta tests.

pkg/fasta/test/rasta/issue_000069.dart.dartk.expect

Index: pkg/fasta/test/rasta/issue_000069.dart.dartk.expect
diff --git a/pkg/fasta/test/rasta/issue_000069.dart.dartk.expect b/pkg/fasta/test/rasta/issue_000069.dart.dartk.expect
new file mode 100644
index 0000000000000000000000000000000000000000..9b3d5ea0d1e44b7d21bd855c5dbc74b8dfab3e37
--- /dev/null
+++ b/pkg/fasta/test/rasta/issue_000069.dart.dartk.expect
@@ -0,0 +1,10 @@
+library;
+import self as self;
+
+static method main() → dynamic {
+  dynamic x;
+  dynamic i = 0;
+  while ((let final dynamic #t1 = i in let final dynamic #t2 = i = #t1.+(1) in #t1).<(5)) {
+    dynamic x = i;
+  }
+}