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

compiler/testData/diagnostics/tests/smartCasts/twoImplicitReceivers.fir.kt

@@ -0,0 +1,18 @@
+interface IA
+interface IB
+
+object A : IA {
+    fun B.foo() {  }
+}
+
+object B : IB
+
+fun test(a: IA, b: IB) {
+    with(a) lambda1@{
+        with(b) lambda2@{
+            if (this@lambda1 is A && this@lambda2 is B) {
+                foo()
+            }
+        }
+    }
+}