PsiJetFileStubImpl[package=]
  PACKAGE_DIRECTIVE:
  FUN:[fqName=some, hasBlockBody=false, hasBody=true, hasTypeParameterListBeforeFunctionName=false, isExtension=true, isTopLevel=true, name=some]
    TYPE_REFERENCE:
      USER_TYPE:[isAbsoluteInRootPackage=false]
        REFERENCE_EXPRESSION:[referencedName=DoubleArray]
    VALUE_PARAMETER_LIST: