Make hasNext a getter instead of a method.

tests/co19/co19-dart2js.status

Index: tests/co19/co19-dart2js.status
diff --git a/tests/co19/co19-dart2js.status b/tests/co19/co19-dart2js.status
index 00b479abcecebb9616f6c8cbc75c00e19be96d74..a4f6bf58c7a1328bfb47655fb876c63ce9625436 100644
--- a/tests/co19/co19-dart2js.status
+++ b/tests/co19/co19-dart2js.status
@@ -363,6 +363,25 @@ LibTest/core/int/operator_right_shift_A01_t01: Fail, OK # Expects negative resul
 LibTest/core/int/operator_OR_A01_t01: Fail, OK # Requires bigints.
 LibTest/core/int/operator_remainder_A01_t01: Fail, OK # Requires bigints.
 
+
+# The following tests use hasNext() (method) instead of hasNext (getter).
+Language/11_Statements/07_Do_A02_t01: Fail, OK
+Language/11_Statements/05_For/2_For_in_A01_t01: Fail, OK
+Language/11_Statements/05_For/2_For_in_A01_t04: Pass, OK
+Language/11_Statements/05_For/2_For_in_A01_t03: Pass, OK
+Language/11_Statements/05_For/2_For_in_A01_t02: Pass, OK
+Language/11_Statements/05_For/2_For_in_A01_t05: Fail, OK
+Language/11_Statements/06_While_A02_t01: Fail, OK
+LibTest/core/Queue/iterator_hasNext_A01_t02: Fail, OK
+LibTest/core/Queue/iterator_hasNext_A01_t01: Fail, OK
+LibTest/core/Queue/iterator_A01_t02: Fail, OK
+LibTest/core/Queue/Queue.from_A01_t02: Fail, OK
+LibTest/core/List/iterator_hasNext_A01_t01: Fail, OK
+LibTest/core/List/iterator_next_A01_t01: Fail, OK
+LibTest/core/List/iterator_A01_t01: Fail, OK
+LibTest/core/List/List.from_A01_t01: Fail, OK
+LibTest/core/Set/Set.from_A01_t02: Fail, OK
+
 # The following tests use the deprecated Date interface.
 # Issue co19 - 125
 LibTest/core/Date/toString_A02_t01: Fail, OK