func golang.org/x/tools/internal/typeparams.UnionTermSet

3 uses

	golang.org/x/tools/internal/typeparams (current package)
		coretype.go#L122: 		return UnionTermSet(typ)
		normalize.go#L91: func UnionTermSet(union *types.Union) ([]*types.Term, error) {

	golang.org/x/tools/go/types/typeutil
		map.go#L336: 	terms, err := typeparams.UnionTermSet(t)