fix null ptr exception

Author: patricklx

src/main/kotlin/com/emberjs/EmberXmlElementDescriptor.kt

@@ -95,7 +95,7 @@ class EmberXmlElementDescriptor(private val tag: XmlTag, private val declaration
             return EmberUtils.getComponentReferenceData(followed)
         }
         val file = f ?: target.containingFile.originalFile
-        if (this.tag.containingFile.virtualFile.path == file.virtualFile.path) {
+        if (this.tag.originalVirtualFile?.path == file.originalVirtualFile?.path) {
             return ComponentReferenceData()
         }