For each parameter unused: support correctly it() case

Related to KT-22068

idea/testData/inspectionsLocal/forEachParameterNotUsed/.inspection

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+org.jetbrains.kotlin.idea.inspections.ForEachParameterNotUsedInspection

idea/testData/inspectionsLocal/forEachParameterNotUsed/invoke.kt

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+// PROBLEM: none
+// WITH_RUNTIME
+
+class My {
+    operator fun invoke() {}
+}
+
+fun bar(my: List<My>) {
+    my.for<caret>Each { it() }
+}