Add examples combining null-only-on-error with list and non-null

Author: benjie

spec/Section 3 -- Type System.md

@@ -1957,10 +1957,18 @@ Following are examples of result coercion with various types and values:
 | `[Int]*`      | `null`          | `null` (With logged coercion error)         |
 | `[Int]*`      | `[1, 2, null]`  | `[1, 2, null]`                              |
 | `[Int]*`      | `[1, 2, Error]` | `[1, 2, null]` (With logged error)          |
+| `[Int!]*`     | `[1, 2, 3]`     | `[1, 2, 3]`                                 |
+| `[Int!]*`     | `null`          | `null` (With logged coercion error)         |
+| `[Int!]*`     | `[1, 2, null]`  | `null` (With logged coercion error)         |
+| `[Int!]*`     | `[1, 2, Error]` | `null` (With logged error)                  |
 | `[Int*]`      | `[1, 2, 3]`     | `[1, 2, 3]`                                 |
 | `[Int*]`      | `null`          | `null`                                      |
 | `[Int*]`      | `[1, 2, null]`  | `[1, 2, null]` (With logged coercion error) |
 | `[Int*]`      | `[1, 2, Error]` | `[1, 2, null]` (With logged error)          |
+| `[Int*]!`     | `[1, 2, 3]`     | `[1, 2, 3]`                                 |
+| `[Int*]!`     | `null`          | Error: Value cannot be null                 |
+| `[Int*]!`     | `[1, 2, null]`  | `[1, 2, null]` (With logged coercion error) |
+| `[Int*]!`     | `[1, 2, Error]` | `[1, 2, null]` (With logged error)          |
 | `[Int*]*`     | `[1, 2, 3]`     | `[1, 2, 3]`                                 |
 | `[Int*]*`     | `null`          | `null` (With logged coercion error)         |
 | `[Int*]*`     | `[1, 2, null]`  | `[1, 2, null]` (With logged coercion error) |