Better performance on long lists containing comments.

test/regression/0400/0484.stmt

Index: test/regression/0400/0484.stmt
diff --git a/test/regression/0400/0484.stmt b/test/regression/0400/0484.stmt
new file mode 100644
index 0000000000000000000000000000000000000000..f52a19039f323a8b8ec8e7d4b283cbf8b0120782
--- /dev/null
+++ b/test/regression/0400/0484.stmt
@@ -0,0 +1,29 @@
+>>>
+var list = [
+  // comment
+  function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3), function(a: 1, b: 2, c: 3),
+];
+<<<
+var list = [
+  // comment
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+  function(a: 1, b: 2, c: 3),
+];