fn_type_decl.name: 'example_fn_type'
str(fn_type): 'int example_fn_type (char, float)'
str(fn_type.type): 'int'
argument_types: ['char', 'float']
is_variadic: False
err: type "int example_fn_type (char, float)" does not have a "sizeof"
fn_type_decl.name: 'example_variadic_fn_type'
str(fn_type): 'int example_variadic_fn_type (char, float, ...)'
str(fn_type.type): 'int'
argument_types: ['char', 'float']
is_variadic: True
err: type "int example_variadic_fn_type (char, float, ...)" does not have a "sizeof"
