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

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

@@ -0,0 +1,13 @@
+// !LANGUAGE: +ProhibitAssigningSingleElementsToVarargsInNamedForm
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+object X1
+object X2
+
+fun overloadedFun(arg: String, vararg args: String) = X1
+fun overloadedFun(arg: String, vararg args: String, flag: Boolean = true) = X2
+
+val test1a: X1 = overloadedFun("", "")
+val test1b: X1 = overloadedFun("", args = "")
+val test1c: X2 = overloadedFun("", "", "", flag = true)
+