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

compiler/testData/diagnostics/tests/implicitIntersection.fir.kt

@@ -0,0 +1,30 @@
+// !WITH_NEW_INFERENCE
+// NI_EXPECTED_FILE
+// See KT-10244: no intersection types in signatures
+
+open class B
+interface A
+interface C
+
+// Error!
+fun foo(b: B) = if (b is A && b is C) b else null
+
+// Ok: given explicitly
+fun gav(b: B): A? = if (b is A && b is C) b else null
+
+class My(b: B) {
+    // Error!
+    val x = if (b is A && b is C) b else null
+    // Ok: given explicitly
+    val y: C? = if (b is A && b is C) b else null
+    // Error!
+    fun foo(b: B) = if (b is A && b is C) b else null
+}
+
+fun bar(b: B): String {
+    // Ok: local variable
+    val tmp = if (b is A && b is C) b else null
+    // Error: local function
+    fun foo(b: B) = if (b is A && b is C) b else null
+    return tmp.toString()
+}