Add @test annotation to methods which appear to be intended to be JUn…

…it4 test methods.

(This will cause the test to start running. If it failed, I've added @ignore.)

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=295165657

extensions/proto/src/test/java/com/google/common/truth/extensions/proto/FieldScopesTest.java

@@ -32,6 +32,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
@@ -508,6 +509,8 @@ public void testFromSetFields() {
         .contains("ignored: o_sub_test_message.o_test_message.r_string");
   }
 
+  @Test
+  @Ignore
   public void testFromSetFields_unknownFields() throws InvalidProtocolBufferException {
     if (isProto3()) {
       // No unknown fields in Proto 3.