Make zipWithNext work & add test

idea/testData/debugger/sequence/exec/sequence/outs/zipWithNextMany.out

@@ -13,16 +13,16 @@ count
     after: nothing
 mappings for zipWithNext
   direct:
-    1 -> nothing
-    2 -> nothing
-    4 -> nothing
-    6 -> nothing
-    8 -> nothing
+    1 -> 3
+    2 -> 3,5
+    4 -> 5,7
+    6 -> 7,9
+    8 -> 9
   reverse:
-    nothing <- 3
-    nothing <- 5
-    nothing <- 7
-    nothing <- 9
+    1,2 <- 3
+    2,4 <- 5
+    4,6 <- 7
+    6,8 <- 9
 mappings for count
   direct:
     3 -> nothing
@@ -33,6 +33,4 @@ mappings for count
     empty
 Disconnected from the target VM
 
-WRONG
-
 Process finished with exit code 0