[FIR-TEST] Add test with missing smartcast

compiler/fir/resolve/testData/resolve/problems/noSmartcast.kt

@@ -0,0 +1,11 @@
+interface A {
+    fun foo()
+}
+
+fun takeA(a: A): Boolean = true
+
+fun test(a: Any) {
+    if (takeA(a as? A ?: return)) {
+        a.<!UNRESOLVED_REFERENCE!>foo<!>()
+    }
+}

compiler/fir/resolve/testData/resolve/problems/noSmartcast.txt

@@ -0,0 +1,24 @@
+FILE: noSmartcast.kt
+    public abstract interface A : R|kotlin/Any| {
+        public abstract fun foo(): R|kotlin/Unit|
+
+    }
+    public final fun takeA(a: R|A|): R|kotlin/Boolean| {
+        ^takeA Boolean(true)
+    }
+    public final fun test(a: R|kotlin/Any|): R|kotlin/Unit| {
+        when () {
+            R|/takeA|(when (lval <elvis>: R|A?| = (R|<local>/a| as R|A?|)) {
+                ==($subj$, Null(null)) ->  {
+                    ^test Unit
+                }
+                else ->  {
+                    R|<local>/<elvis>|
+                }
+            }
+            ) ->  {
+                R|<local>/a|.R|/A.foo|()
+            }
+        }
+
+    }

compiler/fir/resolve/tests/org/jetbrains/kotlin/fir/FirDiagnosticsTestGenerated.java

@@ -913,6 +913,11 @@ public class FirDiagnosticsTestGenerated extends AbstractFirDiagnosticsTest {
             runTest("compiler/fir/resolve/testData/resolve/problems/nestedClassContructor.kt");
         }
 
+        @TestMetadata("noSmartcast.kt")
+        public void testNoSmartcast() throws Exception {
+            runTest("compiler/fir/resolve/testData/resolve/problems/noSmartcast.kt");
+        }
+
         @TestMetadata("propertyFromJavaPlusAssign.kt")
         public void testPropertyFromJavaPlusAssign() throws Exception {
             runTest("compiler/fir/resolve/testData/resolve/problems/propertyFromJavaPlusAssign.kt");