Implement type checking of list literals (issue 220).

tests/corelib/src/StringBaseVMTest.dart

 // Copyright (c) 2011, 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.
 // Dart test program for testing class 'StringBase' (currently VM specific).
-// We use that flag to disable privacy.
-// VMOptions=--expose_core_impl
 
 #library("StringBaseTest.dart");
 #import("dart:coreimpl");
 
 
 class StringBaseTest {
 
   StringBaseTest() {}
 
   toString() {
     return "StringBase Tester";
   }
   static testSubstringMatches() {
     Expect.equals(true, "Hello".substringMatches(0, "Hello"));
     Expect.equals(true, "Hello World".substringMatches(0, "Hello"));
     Expect.equals(false, "My Hello World".substringMatches(0, "Hello"));
     Expect.equals(true, "My Hello World".substringMatches(6, "lo W"));
     Expect.equals(false, "Hello".substringMatches(0, "low"));
   }
 
   static testInterpolation() {
-    Expect.equals("", StringBase._interpolate([]));
-    Expect.equals("Hello World",
-        StringBase._interpolate(["Hello", " ", "World"]));
-    Expect.equals("Hello StringBase Tester!",
-        StringBase._interpolate(["Hello ", new StringBaseTest(), "!"]));
-
     var answer = 40 + 2;
     var s = "The answer is $answer.";
     Expect.equals("The answer is 42.", s);
 
-    int numBottles = 99;
+    int numBottles = 33;
     String wall = "wall";
+    s = "${numBottles*3} bottles of beer on the $wall.";
+    Expect.equals("99 bottles of beer on the wall.", s);
   }
 
   static testCreation() {
     String s = "Hello";
     List<int> a = new List(s.length);
     List<int> ga  = new List();
     bool exception_caught = false;
     for (int i = 0; i < a.length; i++) {
       a[i] = s.charCodeAt(i);
       ga.add(s.charCodeAt(i));
@@ skipping 41 matching lines @@
     testSubstringMatches();
     testInterpolation();
     testCreation();
     testSubstring();
   }
 }
 
 main() {
   StringBaseTest.testMain();
 }