Migrate the language tests up to arithmetic_test.

tests/language_strong/adjacent_string_literals_test.dart

Index: tests/language_strong/adjacent_string_literals_test.dart
diff --git a/tests/language_strong/adjacent_string_literals_test.dart b/tests/language_strong/adjacent_string_literals_test.dart
deleted file mode 100644
index 48f8ba2bd1cf50f0ff02cde6b0142fe1096ca259..0000000000000000000000000000000000000000
--- a/tests/language_strong/adjacent_string_literals_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) 2012, 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.
-
-import "package:expect/expect.dart";
-
-main() {
-  testEmpty();
-  testInterpolation();
-  testMultiline();
-}
-
-testEmpty() {
-  Expect.equals("", "" "" "");
-  Expect.equals("", "" '' "");
-  Expect.equals("", "" "" r"");
-
-  Expect.equals("a", "a" "");
-  Expect.equals("a", "a" '');
-  Expect.equals("a", "a" r'');
-
-  Expect.equals("b", 'b' "");
-  Expect.equals("b", 'b' '');
-  Expect.equals("b", 'b' r'');
-
-  Expect.equals("c", r'c' "");
-  Expect.equals("c", r'c' '');
-  Expect.equals("c", r'c' r'');
-
-  Expect.equals("a", "" "a");
-  Expect.equals("a", "" 'a');
-  Expect.equals("a", "" r'a');
-
-  Expect.equals("b", '' "b");
-  Expect.equals("b", '' 'b');
-  Expect.equals("b", '' r'b');
-
-  Expect.equals("c", r'' "c");
-  Expect.equals("c", r'' 'c');
-  Expect.equals("c", r'' r'c');
-}
-
-testInterpolation() {
-  var s = "a";
-  Expect.equals(r"ab", "$s" "b");
-  Expect.equals(r"ab", '$s' "b");
-  Expect.equals(r"$sb", r'$s' "b");
-
-  Expect.equals(r"-a-b", "-$s-" "b");
-  Expect.equals(r"-a-b", '-$s-' "b");
-  Expect.equals(r"-$s-b", r'-$s-' "b");
-
-  Expect.equals(r"ba", 'b' "$s");
-  Expect.equals(r"ba", 'b' '$s');
-  Expect.equals(r"b$s", 'b' r'$s');
-
-  Expect.equals(r"b-a-", 'b' "-$s-");
-  Expect.equals(r"b-a-", 'b' '-$s-');
-  Expect.equals(r"b-$s-", 'b' r'-$s-');
-}
-
-testMultiline() {
-  Expect.equals(
-      "abe",
-      "a"
-      "b"
-      "e");
-  Expect.equals(
-      "a b e",
-      "a "
-      "b "
-      "e");
-  Expect.equals(
-      "a b e",
-      "a"
-      " b"
-      " e");
-
-  Expect.equals(
-      "abe",
-      """
-a"""
-      "b"
-      "e");
-  Expect.equals(
-      "a b e",
-      """
-a"""
-      " b"
-      " e");
-
-  Expect.equals(
-      "abe",
-      """
-a"""
-      """
-b"""
-      """
-e""");
-}