Bug 520685 - [Generic Editor] Sort ext. by most specialized content-type

Suppress warning about unchecked cast.

Change-Id: I97dd3ae8c1946535fc0dee73bb6bdaaf22f43341
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
diff --git a/org.eclipse.ui.genericeditor/src/org/eclipse/ui/internal/genericeditor/GenericContentTypeRelatedExtension.java b/org.eclipse.ui.genericeditor/src/org/eclipse/ui/internal/genericeditor/GenericContentTypeRelatedExtension.java
index da7dc2b..1de66f2 100644
--- a/org.eclipse.ui.genericeditor/src/org/eclipse/ui/internal/genericeditor/GenericContentTypeRelatedExtension.java
+++ b/org.eclipse.ui.genericeditor/src/org/eclipse/ui/internal/genericeditor/GenericContentTypeRelatedExtension.java
@@ -36,6 +36,7 @@
 		this.targetContentType = Platform.getContentTypeManager().getContentType(element.getAttribute(CONTENT_TYPE_ATTRIBUTE));
 	}
 
+	@SuppressWarnings("unchecked")
 	public T createDelegate() {
 		try {
 			return (T) extension.createExecutableExtension(CLASS_ATTRIBUTE);