Fix incorrect optimization in ExpressionTypingServices

Previously, it's been working because was almost always
a different instance.

After, the latter change with avoidance of storing trivial
info there, newDataFlowInfo may accidentally become empty
as context.dataFlowInfo.
But we, obviously, should compare it with newContext.dataFlowInfo instead

compiler/frontend/src/org/jetbrains/kotlin/types/expressions/ExpressionTypingServices.java

@@ -297,7 +297,7 @@ public class ExpressionTypingServices {
                 beforeJumpInfo = result.getJumpFlowInfo();
                 jumpOutPossible = result.getJumpOutPossible();
             }
-            if (newDataFlowInfo != context.dataFlowInfo) {
+            if (newDataFlowInfo != newContext.dataFlowInfo) {
                 newContext = newContext.replaceDataFlowInfo(newDataFlowInfo);
                 // We take current data flow info if jump there is not possible
             }