Find stdlib usages test case

relates to #KT-39196

idea/testData/findUsages/stdlibUsages/LibraryMemberFunctionUsagesInStdlib.0.kt

@@ -0,0 +1,9 @@
+// PSI_ELEMENT: org.jetbrains.kotlin.psi.KtNamedFunction
+// OPTIONS: usages
+// FIND_BY_REF
+// WITH_FILE_NAME
+package usages
+
+fun test() {
+    val f = mapOf(Pair("1","2")).keys.<caret>single( { true } )
+}

idea/testData/findUsages/stdlibUsages/LibraryMemberFunctionUsagesInStdlib.results.txt

@@ -0,0 +1 @@
+Function call 8 val f = mapOf(Pair("1","2")).keys.single( { true } )