Added tables to integration tests, tweaked a lot of comments

tests/integrations/test_tables.toy

@@ -0,0 +1,33 @@
+//1-D table
+var a = ["alpha": 1, "beta": 2, "gamma": 3];
+a["beta"] = 6;
+
+print a;
+assert a == ["alpha": 1, "beta": 6, "gamma": 3], "1-D tables failed";
+
+//nested
+var b = [
+	"outer": ["inner": true],
+	"alpha": 1,
+	"beta": 2,
+	"gamma": 3
+];
+
+print b;
+assert b == ["alpha": 1, "beta": 2, "gamma": 3, "outer": ["inner": true]], "nested tables failed";
+
+//test empty tables
+var empty = [:];
+
+print empty;
+assert empty == [:], "empty tables failed";
+
+//test trailing commas
+var trailing = [
+	"alpha":1,
+	"beta":2,
+	"gamma":3,
+];
+
+print trailing;
+assert trailing == ["alpha": 1, "beta": 2, "gamma": 3], "trailing tables failed";

tests/integrations/test_variables.toy

@@ -50,7 +50,7 @@ print !true; //false
 print !false; //true
 
 //precedence
-print true && false || true; //TODO: a grouping warning is needed for this
+print true && false || true; //URGENT: a grouping warning is needed for this, see issue #154
 
 //types
 var a: int;