process["build process"]
  
  session["build session"]
  process --> session
  
  build_tree["build tree"]
  session --> build_tree
  
  build1["root build"]
  build_tree --> build1
  
  project1["root project"]
  build1 --> project1
  
  project2["project"]
  build1 --> project2
  
  build2["included build"]
  build_tree --> build2
  
  project3["root project"]
  build2 --> project3
  

                    if (seenTopLevelPackages.add(packageName) && nameFilter(packageName)) {
                        yield(analysisSession.firSymbolBuilder.createPackageSymbol(FqName.ROOT.child(packageName)))
                    }
                }
            }
        }
    }

    override fun getPossibleCallableNames(): Set<Name> = withValidityAssertion {

        val getterNames = possibleGetMethodNames(fqName.shortNameOrSpecial())
        return getterNames.flatMap { getterName ->
            resolveKdocFqName(fqName.parent().child(getterName), contextElement, trySyntheticGetters = false)
        }
    }

    private fun KtAnalysisSession.getExtensionReceiverSymbolByThisQualifier(
        fqName: FqName,
        contextElement: KtElement,