fcc6f873c7
It is duplicated because we have two checkers: FIR (for IDE support
in simple cases) and IR ("honest" checker supporting all cases).
Fix this by running FIR checker only in IDE.
FIR checker behavior remains covered by tests in
`LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated`.
^KT-62559 Fixed