New analyzer_experimental snapshot.

editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/util/ToFormattedSourceVisitor.java

Index: editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/util/ToFormattedSourceVisitor.java
diff --git a/editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/util/ToFormattedSourceVisitor.java b/editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/util/ToFormattedSourceVisitor.java
index b851d2c994d8a27c94b6c4db8533ecb3ed1cbb1e..1eaf379ea30873ac8a0fdf6f98932f71ee14e16b 100644
--- a/editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/util/ToFormattedSourceVisitor.java
+++ b/editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/util/ToFormattedSourceVisitor.java
@@ -636,7 +636,17 @@ public class ToFormattedSourceVisitor implements ASTVisitor<Void> {
     }
     visit(node.getTypeArguments(), " ");
     writer.print("[");
-    visitList(node.getElements(), ", ");
+    {
+      NodeList<Expression> elements = node.getElements();
+      if (elements.size() < 2 || elements.toString().length() < 60) {
+        visitList(elements, ", ");
+      } else {
+        String elementIndent = indentString + "    ";
+        writer.print("\n");
+        writer.print(elementIndent);
+        visitList(elements, ",\n" + elementIndent);
+      }
+    }
     writer.print("]");
     return null;
   }