docs added & warning unsuppressed

plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/dgm/DGMMemberContributor.java

@@ -30,9 +30,10 @@ import org.jetbrains.plugins.groovy.lang.resolve.NonCodeMembersContributor;
 import java.util.List;
 
 /**
- * @author Max Medvedev
+ * Provides members from extension classes referenced in {@code META-INF/services/org.codehaus.groovy.runtime.ExtensionModule}.
  */
 public class DGMMemberContributor extends NonCodeMembersContributor {
+
   @Override
   public void processDynamicElements(@NotNull PsiType qualifierType,
                                      PsiClass aClass,

plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/lang/resolve/ResolveUtil.java

@@ -79,7 +79,6 @@ import java.util.concurrent.ConcurrentHashMap;
 /**
  * @author ven
  */
-@SuppressWarnings({"StringBufferReplaceableByString"})
 public class ResolveUtil {
   private static final Logger LOG = Logger.getInstance(ResolveUtil.class);