Similar to dynGet(), find a symbol in the closest data quality indicator
function and return its value. Can stop(), if symbol evaluation causes a
stop.
util_find_indicator_function_in_callers(symbol = "resp_vars")value of the symbol, if available, NULL otherwise
symbol to find
Other condition_functions:
util_condition_constructor_factory(),
util_deparse1(),
util_error(),
util_find_external_functions_in_stacktrace(),
util_find_first_externally_called_functions_in_stacktrace(),
util_message(),
util_warning()