KT-8794 Parameter Information should work in index expression

#KT-8794 Fixed

idea/testData/parameterInfo/functionCall/FunctionalValue1.kt

@@ -0,0 +1,8 @@
+fun x(name: String, next: (name: String) -> String): String {
+    return next(<caret>)
+}
+
+//TODO: use parameter names from functional type
+/*
+Text: (<highlight>p1: String</highlight>), Disabled: false, Strikeout: false, Green: true
+*/