Intention tests: add directive to skip errors before

idea/testData/intentions/declarations/convertMemberToExtension/varWithSetter.kt

@@ -1,6 +1,6 @@
-// ERROR: Property must be initialized
 // WITH_RUNTIME
-// SKIP_ERRORS_AFTER
+// SKIP_ERRORS_BEFORE
+
 class Owner {
     var <caret>p: Int
       set(v) {}