Add test checking file annotations resolution

#KT-37219 Fixed

idea/testData/resolve/resolveModeComparison/FileAnnotations.kt

@@ -0,0 +1,14 @@
+// COMPILER_ARGUMENTS: -Xopt-in=kotlin.RequiresOptIn
+@file:OptIn(Experimental::class)
+
+@Retention(value = AnnotationRetention.BINARY)
+@RequiresOptIn(level = RequiresOptIn.Level.WARNING)
+annotation class Experimental
+
+object MyObject
+
+@Experimental
+operator fun MyObject.invoke(closure: () -> Unit) {}
+
+fun d() = <caret>MyObject {
+}