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

compiler/testData/diagnostics/tests/redeclarations/FunVsCtorInDifferentFiles.fir.kt

@@ -0,0 +1,10 @@
+// FILE: test1.kt
+class A
+class B(val x: Int) {
+    constructor(x: Int, y: Int): this(x + y)
+}
+
+// FILE: test2.kt
+fun A() {}
+fun B(x: Int) = x
+fun B(x: Int, y: Int) = x + y