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

compiler/testData/diagnostics/tests/inference/completeInferenceIfManyFailed.fir.kt

@@ -0,0 +1,17 @@
+// !WITH_NEW_INFERENCE
+// !CHECK_TYPE
+
+package d
+
+fun <T: Any> joinT(x: Int, vararg a: T): T? {
+    return null
+}
+
+fun <T: Any> joinT(x: Comparable<*>, y: T): T? {
+    return null
+}
+
+fun test() {
+    val x2 = <!INAPPLICABLE_CANDIDATE!>joinT<!>(Unit, "2")
+    <!INAPPLICABLE_CANDIDATE!>checkSubtype<!><String?>(x2)
+}