[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/resolve/overloadConflicts/varargsMixed.fir.kt

@@ -0,0 +1,13 @@
+// !LANGUAGE: +ProhibitAssigningSingleElementsToVarargsInNamedForm
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+object X1
+object X2
+
+fun overloadedFun5(vararg ss: String) = X1
+fun overloadedFun5(s: String, vararg ss: String) = X2
+
+val test1 = overloadedFun5("")
+val test2 = overloadedFun5("", "")
+val test3: X2 = overloadedFun5(s = "", ss = "")
+val test4: X1 = overloadedFun5(ss = "")