K2: process also arguments while calculating postponed atoms

#KT-61933 Fixed

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/CompletionModeCalculator.kt

@@ -57,7 +57,7 @@ private class CalculatorForNestedCall(
     private val typesToProcess: Queue<KotlinTypeMarker> = ArrayDeque()
 
     private val postponedAtoms: List<PostponedResolvedAtom> by lazy {
-        candidate.postponedAtoms.filterNot { it.analyzed }
+        ConstraintSystemCompleter.getOrderedNotAnalyzedPostponedArguments(candidate)
     }
 
     fun computeCompletionMode(): ConstraintSystemCompletionMode = with(context) {

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/ConstraintSystemCompleter.kt

@@ -407,6 +407,11 @@ class ConstraintSystemCompleter(components: BodyResolveComponents, private val c
     }
 
     companion object {
+        internal fun getOrderedNotAnalyzedPostponedArguments(candidate: Candidate): List<PostponedResolvedAtom> {
+            val callSite = candidate.callInfo.callSite as? FirStatement ?: return emptyList()
+            return getOrderedNotAnalyzedPostponedArguments(listOf(callSite))
+        }
+
         private fun getOrderedNotAnalyzedPostponedArguments(topLevelAtoms: List<FirStatement>): List<PostponedResolvedAtom> {
             val notAnalyzedArguments = arrayListOf<PostponedResolvedAtom>()
             for (primitive in topLevelAtoms) {