DefinitionBase: fix issue where isProtected() returned false for protected static APIs

Similar functions, like isPublic(), isInternal(), and isPrivate() work the same for both static and non-static APIs, so this makes it more consistent for protected APIs. This was likely overlooked because there's a IStaticProtectedNamespaceDefinition, but nothing similar for other static namespaces.
diff --git a/compiler/src/main/java/org/apache/royale/compiler/internal/definitions/DefinitionBase.java b/compiler/src/main/java/org/apache/royale/compiler/internal/definitions/DefinitionBase.java
index c822686..27f617d 100644
--- a/compiler/src/main/java/org/apache/royale/compiler/internal/definitions/DefinitionBase.java
+++ b/compiler/src/main/java/org/apache/royale/compiler/internal/definitions/DefinitionBase.java
@@ -824,7 +824,8 @@
     @Override
     public boolean isProtected()
     {
-        return namespaceReference instanceof INamespaceDefinition.IProtectedNamespaceDefinition;
+        return namespaceReference instanceof INamespaceDefinition.IProtectedNamespaceDefinition
+                || namespaceReference instanceof INamespaceDefinition.IStaticProtectedNamespaceDefinition;
     }
 
     @Override