Use iterator, moveNext(), current.

tests/corelib/string_pattern_test.dart

Index: tests/corelib/string_pattern_test.dart
diff --git a/tests/corelib/string_pattern_test.dart b/tests/corelib/string_pattern_test.dart
index 440855d1b7882702fcf3c1d4b5048a675090cfb7..6ab5e958dc9fcfafe2e06eead23255856d32537b 100644
--- a/tests/corelib/string_pattern_test.dart
+++ b/tests/corelib/string_pattern_test.dart
@@ -18,15 +18,16 @@ testNoMatch() {
   // Also tests that RegExp groups don't work.
   String helloPattern = "with (hello)";
   Iterable<Match> matches = helloPattern.allMatches(str);
-  Expect.isFalse(matches.iterator().hasNext);
+  Expect.isFalse(matches.iterator.moveNext());
 }
 
 testOneMatch() {
   String helloPattern = "with hello";
   Iterable<Match> matches = helloPattern.allMatches(str);
-  var iterator = matches.iterator();
-  Match match = iterator.next();
-  Expect.isFalse(iterator.hasNext);
+  var iterator = matches.iterator;
+  Expect.isTrue(iterator.moveNext());
+  Match match = iterator.current;
+  Expect.isFalse(iterator.moveNext());
   Expect.equals(str.indexOf('with', 0), match.start);
   Expect.equals(str.indexOf('with', 0) + helloPattern.length, match.end);
   Expect.equals(helloPattern, match.pattern);
@@ -58,19 +59,19 @@ testTwoMatches() {
 testEmptyPattern() {
   String pattern = "";
   Iterable<Match> matches = pattern.allMatches(str);
-  Expect.isTrue(matches.iterator().hasNext);
+  Expect.isTrue(matches.iterator.moveNext());
 }
 
 testEmptyString() {
   String pattern = "foo";
   String str = "";
   Iterable<Match> matches = pattern.allMatches(str);
-  Expect.isFalse(matches.iterator().hasNext);
+  Expect.isFalse(matches.iterator.moveNext());
 }
 
 testEmptyPatternAndString() {
   String pattern = "";
   String str = "";
   Iterable<Match> matches = pattern.allMatches(str);
-  Expect.isTrue(matches.iterator().hasNext);
+  Expect.isTrue(matches.iterator.moveNext());
 }