Fix to ensure no breaks after new and general zero-length space support (dartbug.com/16379).

pkg/analyzer/test/services/data/stmt_tests.data

 >>>
 if (x &&
     y) {
   print('!');
 }
 <<<
 if (x && y) {
   print('!');
 }
 >>>
@@ skipping 26 matching lines @@
 var primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71];
 <<<
 var primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59,
     61, 67, 71];
 >>>
 blah() {
   print('blah blah blah blah blah blah blah blah blah blah blah blah blah blah $foo');
 }
 <<<<
 blah() {
-  print('blah blah blah blah blah blah blah blah blah blah blah blah blah blah $foo');
+  print(
+      'blah blah blah blah blah blah blah blah blah blah blah blah blah blah $foo');
 }
 >>>
 assert(false);
 <<<
 assert(false);
 >>> dartbug.com/16384
 fish() => []..add(1)..add(2);
 <<<
 fish() => []
     ..add(1)
@@ skipping 41 matching lines @@
   }
 }
 >>> dartbug.com/16383
 main() {
   //foo
 }
 <<<
 main() {
   //foo
 }
+>>> dartbug.com/16379
+var x = new XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX();
+<<<
+var x =
+    new XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX();
+>>>
+main() {
+  throw new FormatException("This is a long exception message that puts this over 80 columns.");
+}
+<<<
+main() {
+  throw new FormatException(
+      "This is a long exception message that puts this over 80 columns.");
+}