Update includes:
- Changing syntax of `OI/`NI` tags from `<!NI;TAG!>` to `<!TAG{NI}!>`
- Fix some incorrect directives
- Change order of diagnostics in some places
- Remove ignored diagnostics from FIR test data (previously `DIAGNOSTICS` didn't work)
- Update FIR dumps in some places and add `FIR_IDENTICAL` if needed
- Replace all JAVAC_SKIP with SKIP_JAVAC directive
if assertions mode is not LEGACY.
This is done since assertions can be disabled (in both compile time and
runtime) and thus, the data flow info is not reliable anymore.
#KT-24529: Fixed
Dmitriy Novozhilov