//	    DefaultGODEBUG string  // default GODEBUG setting, for main packages
//
//	    // Source files
//	    GoFiles           []string   // .go source files (excluding CgoFiles, TestGoFiles, XTestGoFiles)
//	    CgoFiles          []string   // .go source files that import "C"
//	    CompiledGoFiles   []string   // .go files presented to compiler (when using -compiled)

		cmd := exec.Command(gorootBinGo, "list")
		if t.short {
			// In short test mode, use a format string to only
			// list packages and commands that have tests.
			const format = "{{if (or .TestGoFiles .XTestGoFiles)}}{{.ImportPath}}{{end}}"
			cmd.Args = append(cmd.Args, "-f", format)
		}
		if t.race {
			cmd.Args = append(cmd.Args, "-tags=race")
		}
		cmd.Args = append(cmd.Args, "std", "cmd")

		{"Package.TestImports", Field, 0},
		{"Package.XTestDirectives", Field, 21},
		{"Package.XTestEmbedPatternPos", Field, 16},
		{"Package.XTestEmbedPatterns", Field, 16},
		{"Package.XTestGoFiles", Field, 0},
		{"Package.XTestImportPos", Field, 0},
		{"Package.XTestImports", Field, 0},
		{"ToolDir", Var, 0},
	},
	"go/build/constraint": {
		{"(*AndExpr).Eval", Method, 16},

pkg go/build, type Package struct, TestGoFiles []string
pkg go/build, type Package struct, TestImportPos map[string][]token.Position
pkg go/build, type Package struct, TestImports []string
pkg go/build, type Package struct, XTestGoFiles []string
pkg go/build, type Package struct, XTestImportPos map[string][]token.Position
pkg go/build, type Package struct, XTestImports []string
pkg go/build, var Default Context
pkg go/build, var ToolDir string