Reapply "Make LinkedHashMap also have a factory constructor and be customizable""

editor/util/plugins/com.google.dart.java2dart/resources/java_core.dart

Index: editor/util/plugins/com.google.dart.java2dart/resources/java_core.dart
diff --git a/editor/util/plugins/com.google.dart.java2dart/resources/java_core.dart b/editor/util/plugins/com.google.dart.java2dart/resources/java_core.dart
index d13bb3d72e1bf7812215b9c4cbbb41812e9b2057..769fdf15ded20a58372e6049da944500be6de52e 100644
--- a/editor/util/plugins/com.google.dart.java2dart/resources/java_core.dart
+++ b/editor/util/plugins/com.google.dart.java2dart/resources/java_core.dart
@@ -31,13 +31,10 @@ bool isInstanceOf(o, Type t) {
   if (oTypeName == tTypeName) {
     return true;
   }
-  if (oTypeName.startsWith("HashMap") && tTypeName == "Map") {
-    return true;
-  }
-  if (oTypeName.startsWith("LinkedHashMap") && tTypeName == "Map") {
+  if (oTypeName.startsWith("List") && tTypeName == "List") {
     return true;
   }
-  if (oTypeName.startsWith("List") && tTypeName == "List") {
+  if (tTypeName == "Map" && o is Map) {
     return true;
   }
   // Dart Analysis Engine specific