Move kernel baseline tests to front_end.

pkg/front_end/test/fasta/expressions.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({fisk}) {
-  print(fisk);
-}
-
-caller(f) {
-  f();
-}
-
-main() {
-  int i = 0;
-  print(i == 1 ? "bad" : "good");
-  print("$i");
-  print("'$i'");
-  print(" '${i}' ");
-  print(" '${i}' '${i}'");
-  print(" '$i' '${i}'");
-  print("foo" "bar");
-  print(" '${i}' '${i}'" " '$i' '${i}'");
-  try {
-    throw "fisk";
-  } on String catch (e, s) {
-    print(e);
-    if (s != null) print(s);
-  }
-  for(;false;) {}
-  var list = ["Hello, World!"];
-  print(list[i]);
-  list[i] = "Hello, Brave New World!";
-  print(list[i]);
-  i = 87;
-  print(-i);
-  print(~i);
-  print(!(i == 42));
-  print(--i);
-  print(++i);
-  print(i--);
-  print(i++);
-  print(new Object());
-  print(const Object());
-  print((new List<String>(2)).runtimeType);
-  foo(fisk: "Blorp gulp");
-  f() {
-    print("f was called");
-  }
-  caller(f);
-  caller(() {
-    print("<anon> was called");
-  });
-  g([message]) {
-    print(message);
-  }
-  g("Hello, World");
-  caller(([x]) {
-    print("<anon> was called with $x");
-  });
-  h({message}) {
-    print(message);
-  }
-  h(message: "Hello, World");
-  caller(({x}) {
-    print("<anon> was called with $x");
-  });
-  print((int).toString());
-  print(int);
-  print(int..toString());
-  try {
-    print(int?.toString());
-    throw "Shouldn't work";
-  } on NoSuchMethodError catch (e) {
-    print("As expected: $e");
-  }
-  print(int.parse("42"));
-}