Miscellaneous spelling checker enhancements

[Pierre-Sassoulas]

Current problem

The spelling checker do not have end lineno or end column because we do not use a node. Also we're spell checking our own messages.

Desired solution

In the spelling checker, after we merge #5929 we should:

• Pass node instead of line number as int in add_message
• Add pylint's msgids and symbols to the dictionary automatically
• Add python's builtin to the dictionary automatically (str, int, etc.)
• Spellchecker doesn't ignore labels and types in autodoc docstrings #10187

Additional context

#6137 (comment)

[Pierre-Sassoulas]

#4320 should be considered at the same time than pylint msgid/symbol.