[NI] Don't loose diagnostic after type variable fixation

#KT-24488 Fixed

compiler/testData/diagnostics/tests/regressions/kt24488.kt

@@ -0,0 +1,15 @@
+// !WITH_NEW_INFERENCE
+// SKIP_TXT
+
+class Bar {
+    val a: Array<String>? = null
+}
+
+fun foo(bar: Bar) = bar.a?.asIterable() ?: <!OI;TYPE_INFERENCE_EXPECTED_TYPE_MISMATCH!><!NI;NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>emptyArray<!>()<!>
+
+fun <T> Array<out T>.asIterable(): Iterable<T> = TODO()
+
+fun testFrontend() {
+    val bar = Bar()
+    foo(bar)
+}