Expanded array tests, read more

Getting the array's length is still not available yet, so I'm not
marking arrays as done - but everything that is there is tested.

I've also tweaked the assert output callbacks to also print 'assert failure'.

tests/integrations/test_arrays.toy

@@ -0,0 +1,17 @@
+//1-D array
+var arr = [1, 2, 3];
+arr[1] = 6;
+
+assert arr == [1, 6, 3], "1-D array failed";
+
+//we need to go deeper
+var barr = [
+	[1, 2, 3],
+	[4, 5, 6],
+	[7, 8, 9]
+];
+
+barr[1][1] = 99;
+
+assert barr == [[1, 2, 3],[4,99,6],[7,8,9]], "2-D array failed";
+

tests/integrations/test_keyword_while.toy

@@ -0,0 +1,25 @@
+//TODO: test keyword 'while', 'break', 'continue'
+
+{
+	//iteration
+	var iteration = 0;
+	while(iteration < 10) {
+		print iteration;
+		iteration += 1;
+	}
+}
+
+
+{
+	//if and while work together
+	var count = 1;
+	while (count <= 10) {
+		if (count % 2 == 0) {
+			print "even";
+		}
+		else {
+			print "odd";
+		}
+		count += 1;
+	}
+}