Migration for JS extension functions and properties marked with @native/external

#KT-15269 Fixed

idea/testData/quickfix/migration/jsExternal/nativeExtensionFunBlockBodyJsRuntime.kt

@@ -0,0 +1,8 @@
+// "Fix with 'asDynamic'" "true"
+
+class TS
+
+@n<caret>ative
+fun TS.normalizePath(path: String): String {
+    noImpl
+}