Add Fasta tests.

pkg/fasta/test/statements.dart

+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+foo() {
+  try {
+    return;
+  } finally {
+    print("Hello from finally block!");
+  }
+}
+
+bar() async {
+  await for (var x in []) {
+    yield x;
+    yield* x;
+  }
+}
+
+main() {
+  do {
+    print("Hello from do-while!");
+  } while(false);
+  do var x = print("Hello from do-while!"); while(false);
+
+  for (String s in ["Hello from for-in!"]) {
+    print(s);
+  }
+  for (String s in ["Hello from for-in without block!"])
+    print(s);
+  var s;
+  for (s in ["Hello from for-in without decl!"]) {
+    print(s);
+  }
+  for (s in ["Hello from for-in without decl and block!"])
+    print(s);
+  a: b: c: print("Hello from labeled statement!");
+  try {
+    try {
+      throw "Hello from rethrow!";
+    } catch (e) {
+      rethrow;
+    }
+  } catch (e) {
+    print(e);
+  }
+  foo();
+  bool done = false;
+  while (!done) {
+    done = true;
+    print("Hello from while!");
+  }
+  ; // Testing empty statement.
+  assert(true);
+  assert(true, "Hello from assert!");
+  try {
+    assert(false, "Hello from assert!");
+  } catch (e) {
+    print(e);
+  }
+  switch (1) {
+    case 1:
+    case 2:
+      print("Hello from switch case!");
+      break;
+    default:
+      break;
+  }
+  switch (4) {
+    L2: case 2:
+      print("Hello from case 2!");
+      break;
+    L1: case 1:
+      print("Hello from case 1!");
+      continue L2;
+    L0: case 0:
+      print("Hello from case 0!");
+      continue L1;
+    case 4:
+      print("Hello from case 4!");
+      continue LD;
+    LD: default:
+      continue L0;
+  }
+  switch (4) {
+    L0: case 1:
+      print("Hello from next case 1");
+      break;
+    default:
+      continue L0;
+  }
+  int i = 0;
+  do {
+    print("Hello from do-while!");
+    if (++i < 3) continue;
+    break;
+  } while (true);
+  i = 0;
+  OUTER: while (true) {
+    print("Hello from while!");
+    if (++i < 3) continue OUTER;
+    break OUTER;
+  }
+}