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

FIR element rendered:
R|kotlin/collections/mutableListOf|<R|kotlin/String|>()

FIR FILE:
FILE: [ResolvedTo(IMPORTS)] insidePlusAssignTargetScript.kts
    context(<script>@R|kotlin/script/templates/standard/ScriptTemplateWithArgs|)
    SCRIPT: [ResolvedTo(TYPES)] <script-insidePlusAssignTargetScript.kts>
        [ResolvedTo(TYPES)] lval args: R|kotlin/Array<kotlin/String>|

        public final [ResolvedTo(BODY_RESOLVE)] fun foo([ResolvedTo(BODY_RESOLVE)] x: R|kotlin/collections/MutableMap<kotlin/Int, kotlin/collections/MutableList<kotlin/String>>|): R|kotlin/Unit| {
            R|<local>/x|.R|kotlin/collections/getOrPut|<R|kotlin/Int|, R|kotlin/collections/MutableList<kotlin/String>|>(Int(1), <L> = [ResolvedTo(BODY_RESOLVE)] [MatchingParameterFunctionTypeKey=kotlin/Function0<V>] getOrPut@fun <anonymous>(): R|kotlin/collections/MutableList<kotlin/String>| <inline=Inline, kind=UNKNOWN>  {
                ^ R|kotlin/collections/mutableListOf|<R|kotlin/String|>()
            }
            ).R|kotlin/collections/plusAssign|<R|kotlin/String|>(String(str))
        }