This patch adds support for format option in the `evaluate` request according to [DAP](https://microsoft.github.io/debug-adapter-protocol/specification#Requests_Evaluate) specification. Also, fixed typo in `LLDB_DAP_INVALID_VARRERF` constant.
This patch adds support for format option in the `evaluate` request according to [DAP](https://microsoft.github.io/debug-adapter-protocol/specification#Requests_Evaluate) specification. Also, fixed typo in `LLDB_DAP_INVALID_VARRERF` constant.