* Breaking parser changes, implement https://github.com/nim-lang/RFCs/issues/442
Types are separated from expressions and better reflected in the grammar.
* add test
* more accurate grammar
* fix keyword typedescs
* accept expressions in proc argument lists
* CI "fixes"
* fixes
* allow full ref expressions again, adapt old tests
* cleanup, fix some tests
* improve grammar, try and revert semtypes change
* restrict sigil binding to identOrLiteral
* fix, should have caught this immediately
* add changelog entry, fix double not nil bug
* correct grammar
* change section
* fix
* real fix hopefully
* fix test
* support LL(1) for tuples
* make grammar.txt too
* Extended side effect error messages
* Applied feedback:
- refactored `markSideEffect`
- refactored string interpolations
- single message
- skip diagnostics in `system.compiles` context
Other:
- started a test of diagnostic messages
[ci skip] Tests aren't updated yet because messaging isn't nailed down.
* - Added hints of where for side effect call locations.
- Tried to clarify the reasons.
* fix tests
* Applied PR review feedback:
- moved collection of side effects from TSym to TContext
- used pragma shorthand form `.sideEffect` and `.noSideEffect` in messages
- added leading '>' to structured messages for readability
- changed `sempass2.markSideEffect` to a proc
- replaced `system.echo` in the test to make the test compatible with Windows
* Applied NEP1 formatting suggestion
Co-authored-by: quantimnot <quantimnot@users.noreply.github.com>
