Ignoring tests that require to be executed as "JUnit Plug-in Test."

com.google.eclipse.protobuf.test/src/com/google/eclipse/protobuf/scoping/Descriptor_fileOptions_Test.java

diff --git a/com.google.eclipse.protobuf.test/src/com/google/eclipse/protobuf/scoping/Descriptor_fileOptions_Test.java b/com.google.eclipse.protobuf.test/src/com/google/eclipse/protobuf/scoping/Descriptor_fileOptions_Test.java
index fd65feb..72b65ed 100644
--- a/com.google.eclipse.protobuf.test/src/com/google/eclipse/protobuf/scoping/Descriptor_fileOptions_Test.java
+++ b/com.google.eclipse.protobuf.test/src/com/google/eclipse/protobuf/scoping/Descriptor_fileOptions_Test.java
@@ -24,6 +24,7 @@
  *
  * @author alruiz@google.com (Alex Ruiz)
  */
+@Ignore("This test requires to be executed as a 'JUnit plug-in test'. I haven't found a way to register PlatformURLHandler with the JVM")
 public class Descriptor_fileOptions_Test {
 
   @Rule public XtextRule xtext = new XtextRule();