Simplified Evaluate function

tests/programs/for.q

@@ -0,0 +1,20 @@
+main() {
+	total := 0
+
+	for 0..10 {
+		total += 1
+	}
+
+	assert total == 10
+
+	for 0..total {
+		total -= 1
+	}
+
+	assert total == 5
+
+	for i := 0..10 {
+		assert i >= 0
+		assert i < 10
+	}
+}