KT element: KtBinaryExpression
FIR element: FirFunctionCallImpl
FIR source kind: KtRealSourceElementKind

FIR element rendered:
R|<local>/<array>|.R|SubstitutionOverride</MyMap.set: R|kotlin/Unit|>|(R|<local>/<index_0>|, R|<local>/<array>|.R|SubstitutionOverride</MyMap.get: R|kotlin/Int|>|(R|<local>/<index_0>|).R|kotlin/Int.plus|(Int(1)))
