FIR resolve: abstract PostponedResolvedAtom & buildCurrentSubstitutor

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/CallResolver.kt

@@ -28,6 +28,7 @@ import org.jetbrains.kotlin.fir.symbols.impl.FirClassSymbol
 import org.jetbrains.kotlin.fir.types.*
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.resolve.calls.inference.model.ConstraintStorage
+import org.jetbrains.kotlin.resolve.calls.model.PostponedResolvedAtomMarker
 import org.jetbrains.kotlin.resolve.calls.tasks.ExplicitReceiverKind
 import org.jetbrains.kotlin.utils.addToStdlib.cast
 
@@ -74,6 +75,7 @@ class Candidate(
     lateinit var substitutor: ConeSubstitutor
 
     var argumentMapping: Map<FirExpression, FirValueParameter>? = null
+    val postponedAtoms = mutableListOf<PostponedResolvedAtomMarker>()
 }
 
 sealed class CallKind {

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/CandidateFactory.kt

@@ -36,7 +36,7 @@ class CandidateFactory(
     }
 }
 
-private fun PostponedArgumentsAnalyzer.Context.addSubsystemFromExpression(expression: FirExpression) {
+fun PostponedArgumentsAnalyzer.Context.addSubsystemFromExpression(expression: FirExpression) {
     when (expression) {
         is FirFunctionCall -> expression.candidate()?.let { addOtherSystem(it.system.asReadOnlyStorage()) }
     }