When a primary input is specified, output will only be generated for that input. (If a primary input is not specified, output will be generated for the whole module.)
This commit only adds the storage for the primary input; the primary input is not yet honored by the frontend, nor is it possible to specify the primary input.
Swift SVN r12148
Also updated the comments in FrontendOptions::ActionType to indicate that only -dump-parse skips type-checking. (Previously, the comments implied that -parse also skipped type-checking, which is not the desired behavior.)
Swift SVN r11374
Added an ActionType enum to FrontendOptions with the various actions that the integrated frontend will support, as well as a new RequestedAction member.
Added support for determining the user’s requested action in ParseFrontendArgs. (The integrated frontend does not yet honor this request; support for that is forthcoming.)
Swift SVN r11372
These are not yet used, since the integrated frontend doesn’t yet support immediate mode, but they are ready for use once immediate mode is supported.
Swift SVN r11326
Added PrintHelp and PrintHelpHidden to FrontendOptions.
Marked both -help and --help-hidden with the FrontendOption flag.
Updated ParseFrontendArgs to parse -help and --help-hidden.
Updated frontend_main() so that it prints the help for the frontend options.
Swift SVN r11320
Added a new FrontendOptions class, which will eventually contain the options for controlling the behavior of the frontend. (This is similar to Clang’s FrontendOptions class.)
Moved InputFilenames, OutputFilename, ModuleName, and SerializedDiagnosticsPath from CompilerInvocation into FrontendOptions.
Split out argument parsing for options in FrontendOptions into a separate ParseFrontendArgs static function.
Swift SVN r11155
