feat(testes): adc funcs em expressions

Author: BeyondMagic

tests/expressions.c

@@ -1,8 +1,22 @@
-int main()
+int add(int k, int y)
+{
+	return k + y;
+}
+
+int sum(int a, int b)
+{
+	// a + b
+	/*
+	* comment
+	*/
+	int r = (a + b) / 10;
+	return r;
+}
+
+int main(int K)
 {
 	int a = 10;
 	int b = 20;
-	int sum = a + b;
-	printf("Sum: %d\n", sum);
+	int r = sum(a, b) + add(a, b);
 	return 0;
-}
+}