CoverVars         map[string]*CoverVar // variables created by coverage analysis
	OmitDebug         bool                 // tell linker not to write debug information
	GobinSubdir       bool                 // install target would be subdir of GOBIN
	BuildInfo         *debug.BuildInfo     // add this info to package main
	TestmainGo        *[]byte              // content for _testmain.go
	Embed             map[string][]string  // //go:embed comment mapping