Add tests for uniqueness [1] and [true]

Tests for languages in which `[1] == [true]` (e.g. Python).

Author: Alexander Ignatev

tests/draft2019-09/uniqueItems.json

@@ -74,6 +74,26 @@
                 "data": [0, false],
                 "valid": true
             },
+            {
+                "description": "[1] and [true] are unique",
+                "data": [[1], [true]],
+                "valid": true
+            },
+            {
+                "description": "[0] and [false] are unique",
+                "data": [[0], [false]],
+                "valid": true
+            },
+            {
+                "description": "nested [1] and [true] are unique",
+                "data": [[[1], "foo"], [[true], "foo"]],
+                "valid": true
+            },
+            {
+                "description": "nested [0] and [false] are unique",
+                "data": [[[0], "foo"], [[false], "foo"]],
+                "valid": true
+            },
             {
                 "description": "unique heterogeneous types are valid",
                 "data": [{}, [1], true, null, 1],