[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/resolve/smartcasts/boundSmartcasts/functionCallBound.kt

@@ -0,0 +1,18 @@
+// !DUMP_CFG
+
+open class Base
+class Sub(val data: Base): Base()
+
+fun Sub.isOk() = true
+
+fun check(base: Base): Base =
+    when {
+        (base as? Sub)?.isOk() == true -> {
+            base.data
+        }
+        else -> {
+            base
+        }
+    }
+
+