const go/types.IsConstType

5 uses

	go/types (current package)
		basic.go#L65: 	IsConstType = IsBoolean | IsNumeric | IsString
		predicates.go#L32: func isConstType(t Type) bool      { return isBasic(t, IsConstType) }
		recording.go#L69: 		assert(!isValid(typ) || allBasic(typ, IsConstType))

	golang.org/x/tools/internal/gcimporter
		iexport.go#L1306: 	switch b := typ.Underlying().(*types.Basic); b.Info() & types.IsConstType {
		iimport.go#L695: 	switch b := typ.Underlying().(*types.Basic); b.Info() & types.IsConstType {