mypy should use List when complaining about issues with the List type, instead of list

[hamirmahal]

Bug Report

mypy should use List when surfacing errors with the List type, not list.

It's confusing to engineers if mypy uses list when complaining about a type error because then engineers are searching the source code for occurrences of list, when the problem is actually with the usage of List.

To Reproduce

        self.orders: typing.List[typing.List[int, int]] = []

Expected Behavior

mypy should complain with

error: "List" expects 1 type argument, but 2 given  [type-arg]

Actual Behavior

mypy actually complains with

error: "list" expects 1 type argument, but 2 given  [type-arg]

Your Environment

• Mypy version used: mypy==1.10.0
• Mypy command-line flags: n/a
• Mypy configuration options from mypy.ini (and other config files): n/a
• Python version used: Python 3.10.12

[A5rocks]

This is a feature request but I will note that:

• you can get an underline via --pretty which should handle any confusion
• doing this would be inconsistent with other error messages

[A5rocks]

Actually, --pretty doesn't have as good of a start to end column as I would expect:

x.py:5: error: "list" expects 1 type argument, but 2 given  [type-arg]
    x: typing.List[typing.List[int, int]] = []
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Found 1 error in 1 file (checked 1 source file)

I reported this separately as #18531.