test rename overhaul: step 8 - language tests

tests/language/src/StringConcatTest.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.
-// String concatenation test.
-
-interface V {
-  static final Version = "7.3.5.3";
-}
-
-
-class StringConcatTest {
-
-  static final Tag = "version-" + V.Version;
-
-  static Answer() {
-    return 42;
-  }
-
-  static testMain() {
-    int nofExceptions = 0;
-
-    var x = 3;
-    var y = 5;
-    Expect.equals("" + x + y, "35");
-    Expect.equals(x + y, 8);
-
-    var s1 = "The answer is " + Answer() + '.';
-    Expect.equals(s1, "The answer is 42.");
-
-    Expect.equals("version-7.3.5.3", Tag);
-
-    // Adding a number to a string value creates a new, concatenated
-    // string.
-    s1 = "Grandmaster Flash and the Furious ";
-    s1 = "$s1${4 + 1}";
-    Expect.equals(true, s1.endsWith("Furious 5"));
-
-    // Adding a string to a number is not supported.
-    try {
-      String cantDo = x + " should't work";  // throws noSuchMethodException.
-      Expect.equals(1, 0);  // this should never be executed.
-    } catch(NoSuchMethodException e) {
-      // In default mode.
-      nofExceptions++;
-    } catch (TypeError e) {
-      // In type checked mode.
-      nofExceptions++;
-    } catch (IllegalArgumentException e) {
-      // TODO(floitsch): IllegalArgumentException might not be correct. If
-      // number operations are supposed to be implemented as double-dispatch
-      // then we should get a NoSuchMethodException instead. In frog the
-      // argument is eagerly checked and throws an IllegalArgumentException.
-      nofExceptions++;
-    }
-
-    // Check that compile time constants are canonicalized.
-    // TODO(hausner): Add more examples once we concatenate
-    // CT constants other than string literals at compile time.
-    var fake = "Milli" + " " + "Vanilli";
-    Expect.equals(fake, "Milli Vanilli");
-    Expect.equals(true, fake === "Milli Vanilli");
-    Expect.equals(true, fake === "Milli " + 'Vanilli');
-
-    Expect.equals(nofExceptions, 1);
-  }
-}
-
-main() {
-  StringConcatTest.testMain();
-}