KT-37779 Treat named value arguments in vararg as arguments with '*'

compiler/testData/ir/irText/expressions/kt37779.kt

@@ -0,0 +1,10 @@
+// !LANGUAGE: +AllowAssigningArrayElementsToVarargsInNamedFormForFunctions
+fun foo(vararg s: String) {}
+
+fun test1() {
+    foo(s = arrayOf("", "OK"))
+}
+
+fun test2(ss: Array<String>) {
+    foo(s = ss)
+}