```catala
declaration scope S:
  input cond content boolean
  internal f1 content decimal depends on x content integer
  output out content decimal

scope S:
  definition f1 of x under condition cond
    consequence equals decimal of (x * 2)
  definition f1 of y under condition not cond
    consequence equals y / 2
  definition out equals f1 of 10
```

```catala-test-inline
$ catala typecheck
[ERROR] Function argument name mismatch between declaration ('x') and definition ('y')

Argument declared here:
┌─⯈ tests/test_func/bad/param_inconsistency.catala_en:4.42-4.43:
└─┐
4 │   internal f1 content decimal depends on x content integer
  │                                          ‾


Defined here:
┌─⯈ tests/test_func/bad/param_inconsistency.catala_en:10.20-10.21:
└──┐
10 │   definition f1 of y under condition not cond
   │                    ‾

#return code 255#
```