override call type does not override named parameters

[psifertex]

Version and Platform (required):

• Binary Ninja Version: 3.1.3626 and earlier
• OS: Any

Bug Description: Using the "override call type" ignores the new names.

Steps To Reproduce:

1. Create a type for a function.
2. Find a call and observe it will be like fn(argname: var1, argname2: var2) (depending on the call type)
3. Now go "override call type" to be fn(int othername, int othername2)
4. Expected behavior would be the call would now look like: fn(othername: var1, othername2: var2)
5. It is not.

Expected Behavior: On step 5, you should see the new names.

Additional Information: This /may/ be related to #2076 so linking it here, but not sure.