Import rasta tests.

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

+library;
+import self as self;
+import "dart:core" as core;
+
+static method main() → dynamic {
+  #L1:
+  switch(1) {
+    #L2:
+    case 1:
+      {
+        "No fall-through error needed.";
+        break #L1;
+        ;
+      }
+    #L3:
+    case 2:
+      {
+        {
+          "Fall-through error needed.";
+          if(true) {
+            break #L1;
+          }
+        }
+        throw core::_fallThroughError();
+      }
+    #L4:
+    case 3:
+      try {
+        "No fall-through error needed.";
+      }
+      finally {
+        break #L1;
+      }
+    #L5:
+    case 4:
+      try {
+        "No fall-through error needed.";
+        break #L1;
+      }
+      finally {
+      }
+    #L6:
+    case 5:
+      {
+        try {
+          "Fall-through error needed.";
+        }
+        finally {
+        }
+        throw core::_fallThroughError();
+      }
+    #L7:
+    case 10000:
+      "Should be last. No fall-through error, falling through allowed here.";
+  }
+}