julia

2116b4c3 - Send all parser and lowering depwarns to the logging system (#25257)

Send all parser and lowering depwarns to the logging system (#25257) Forward all frontend depwarn messages through to the julia logging system for consistency of formatting and dispatch. Notable changes: * Depwarn messages go to the logging system, rather than STDERR * Meta.parse() is given a `depwarn` keyword for convenience in controlling deprecation warnings. * Tests for all parser and lowering deprecation warnings Detail: * Ensure that syntax-deprecation, deprecation-message forwards to the logging system. Split these into distinct functions for depwarns coming from the parser vs lowering, as these extract line number information in a different way. * Include file and line number as metadata everywhere that the frontend knows about it. * Remove jl_parse_depwarn(), replace flisp *depwarn* / *deperror* with simplified *depwarn-opt* handled in one place. * Replace Base.syntax_deprecation_warnings() with Meta.parse(..., depwarn=false) * Internal C functions jl_log() and jl_logf() for use when communicating log messages from C code. These will need to be augmented with an async jl_safe_log() or something similar when printing log messages from the runtime internals. Todo: * Figure out a decent `id` for the syntax and lowering depwarn messages