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

compiler/testData/diagnostics/tests/varargs/MostSepcificVarargsWithJava.fir.kt

@@ -0,0 +1,19 @@
+// FILE: kotlin.kt
+fun main(j : C, s : Array<String?>) {
+    j.from()
+    j.from("")
+    j.from("", "")
+    j.<!AMBIGUITY!>from<!>("", "", "")
+
+    j.<!AMBIGUITY!>from<!>("", *s) // This should not be an ambiguity, see KT-1842
+    j.from(*s)
+}
+
+// FILE: C.java
+public class C {
+    void from() {}
+    void from(String s) {}
+    void from(String s, String s1) {}
+    void from(String... s) {}
+    void from(String s1, String... s) {}
+}