swift

5324d56e - [Index] Convert the `-index-store-compress` command line option to a `FrontendOption`

[Index] Convert the `-index-store-compress` command line option to a `FrontendOption` When I added the `-index-store-compress` option, I forgot to translate it into the `FrontendOptions` struct, which rendered the command line option useless. Correctly set the value in `FrontendOptions` to fix this.