Title: Function with more clause and with guard expression
Goal: Inline the `get_elem/2' function in the body of the `f/1' function.
Parameters: [{file,"in8.erl"},{position,45}].
Documentation: The function `get_elem/2' function has a guard expression and consists of two function clauses. There is no variable name conflict and no need to rename variables. The inline of the function application is allowed. A case expression is created from the copied function clauses, from the formal and actual parameters and from the guard expression. The function application is replaced with this case expression.

