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

compiler/testData/diagnostics/tests/incompleteCode/plusOnTheRight.fir.kt

@@ -0,0 +1,11 @@
+// !WITH_NEW_INFERENCE
+//EA-35646
+package a
+
+class MyClass1 {
+    public operator fun unaryPlus() {}
+}
+
+fun main(arg: MyClass1) {
+    arg<!UNRESOLVED_REFERENCE!>+<!><!SYNTAX!><!>
+}