Spelling checker enhancement follow-up following #6137

[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.)

Additional context

#6137 (comment)

[Pierre-Sassoulas]

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