example programs tests

examples/fibonacci.simple

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+def fibonacci_rec(n):
+    if n <= 1:
+        n
+    else:
+        fibonacci_rec(n - 1) + fibonacci_rec(n - 2)
+
+
+def fibonacci_it(n):
+    if n <= 1:
+        n
+    else:
+        fib = 1
+        prev = 1
+        i = 2
+        while i < n:
+            temp = fib
+            fib = fib + prev
+            prev = temp
+            i++
+        fib

examples/inheritance.simple

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+object shape:
+    size = 1
+
+    def area:
+        size
+
+object square(parent=shape):
+    def area:
+        size * size
+
+object circle(parent=shape):
+    def area:
+        3.1415 * size * size