IDEA-89964 Constant conditions & exceptions inspection is incorrect with instance checks in loops

java/java-tests/testData/inspection/dataFlow/fixture/FinalLoopVariableInstanceof.java

@@ -0,0 +1,16 @@
+public class Test {
+
+  public static void main(Object[] args) throws Exception {
+    boolean elvisLives = false;
+    for (final Object o : args) {
+      if (o instanceof Integer) {
+        elvisLives = true;
+      } else {
+        if (elvisLives) {
+          System.err.println("Elvis is alive!");
+        }
+      }
+    }
+  }
+
+}