[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/resolve/smartcasts/smartcastToNothing.kt

@@ -0,0 +1,24 @@
+// !DUMP_CFG
+fun getNothing(): Nothing = throw Exception()
+fun getNullableNothing(): Nothing? = null
+
+val String?.q: Int get() = 1
+val String.qq: Int get() = 2
+
+fun <T> myListOf(x: T): List<T> = null!!
+
+class A {
+    val a: Int = 1
+    val b: Boolean = true
+}
+
+fun test_0(results: List<Nothing>) {
+    var s: A? = null
+    for (result in results) {
+        s = result
+        if (result.<!UNRESOLVED_REFERENCE!>b<!>) {
+            break
+        }
+    }
+    s?.let { it.a }
+}