* compiler/parser: preserve lineinfo for accent quoted symbols
Previously the lineinfo for symbol $$$ in this example is:
proc `$$$`
^
After this commit:
proc `$$$`
^
* compiler/semstmts: correct lineinfo for accent quoted idents
Previously nimsuggest would highlight this as:
proc `$$$`
^~~
After this commit:
proc `$$$`
^~~
* nimsuggest/tests: add a test for accent quoted proc
Disabled by default
