Function insert_call_outcome 

pub(crate) fn insert_call_outcome(
    interpreter: &mut Interpreter<EthInterpreter>,
    outcome: InterpreterResult,
    return_memory_offset: Option<Range<usize>>,
)

Insert call outcome into interpreter state.

This mimics what revm-handler does in insert_call_outcome:

• Push success indicator (1 or 0) onto stack
• Copy return data to memory at the specified offset
• Return unspent gas to parent
• Record refunds on success