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

Also introduce few new diagnostics:
- NONE_APPLICABLE more many inapplicable candidates
- HIDDEN for visible candidates

This fixes MPP override test
(see mppFakeOverride in FirMultiModuleResolveTestGenerated)

Use this context in FirClassUseSiteScope for type comparison

This commit also introduces separate scope processors:
processFunctionsByName and processPropertiesByName, in addition to
existing processClassifiersByName

Ad-hock call resolver starts to discover ambiguities, which leads
to some ambiguity problems in MPP tests with deep supertype hierarchy

Related to KT-29636