[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/resolve/smartcasts/loops/endlessLoops.kt

@@ -0,0 +1,75 @@
+// !DUMP_CFG
+interface A {
+    fun foo()
+}
+
+fun test_1(x: Any, b: Boolean) {
+    while (true) {
+        x as A
+        if (b) {
+            break
+        }
+    }
+    x.foo()
+}
+
+fun test_2(x: Any, b: Boolean) {
+    while (true) {
+        if (b) {
+            x as A
+            break
+        }
+    }
+    x.foo()
+}
+
+fun test_3(x: Any, b: Boolean) {
+    while (true) {
+        x as A
+        if (b) {
+            break
+        }
+        if (b) {
+            break
+        }
+    }
+    x.foo()
+}
+
+fun test_4(x: Any, b: Boolean) {
+    while (true) {
+        if (b) {
+            x as A
+            break
+        }
+        break
+    }
+    x.<!UNRESOLVED_REFERENCE!>foo<!>() // No smartcast
+}
+
+fun test_5(x: Any, b: Boolean) {
+    do {
+        if (b) {
+            x as A
+            break
+        }
+    } while (true)
+    x.foo()
+}
+
+fun test_6(x: Any, b: Boolean) {
+    do {
+        x as A
+        if (b) {
+            break
+        }
+    } while (true)
+    x.foo()
+}
+
+fun test_7(x: Any) {
+    do {
+        x as A
+    } while (true)
+    x.foo()
+}