[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/resolve/smartcasts/controlStructures/when.kt

@@ -0,0 +1,92 @@
+// !DUMP_CFG
+interface A {
+    fun foo()
+}
+
+interface B {
+    fun bar()
+}
+
+fun test_1(x: Any?) {
+    when {
+        x is A -> x.foo()
+        x is B -> x.bar()
+    }
+
+    when {
+        x !is A -> {}
+        x !is B -> x.foo()
+        x is Int -> {
+            x.foo()
+            x.bar()
+            x.inc()
+        }
+        else -> {
+            x.foo()
+            x.bar()
+        }
+    }
+}
+
+fun test_2(x: Any?) {
+    when(x) {
+        is A -> x.foo()
+        is B -> x.bar()
+    }
+
+    when(x) {
+        !is A -> {}
+        !is B -> x.foo()
+        is Int -> {
+            x.foo()
+            x.bar()
+            x.inc()
+        }
+        else -> {
+            x.foo()
+            x.bar()
+        }
+    }
+}
+
+fun test_3(x: Any?) {
+    when(val y = x) {
+        is A -> {
+            x.foo()
+            y.foo()
+        }
+        is B -> {
+            x.bar()
+            y.bar()
+        }
+    }
+
+    when(val y = x) {
+        !is A -> {}
+        !is B -> {
+            x.foo()
+            y.foo()
+        }
+        is Int -> {
+            x.foo()
+            x.bar()
+            x.inc()
+            y.foo()
+            y.bar()
+            y.inc()
+        }
+        else -> {
+            x.foo()
+            x.bar()
+            y.foo()
+            y.bar()
+        }
+    }
+}
+
+fun test_4(x: Any) {
+    when (x as Int) {
+        1 -> x.inc()
+    }
+    x.inc()
+}