Rename to Chain because it makes more clear that the errors are sti…

…ll wrapped

ierrors/ierrors_no_stacktrace.go

@@ -19,12 +19,12 @@ func Join(errs ...error) error {
 	return errors.Join(errs...)
 }
 
-// Merge merges multiple errors into a single error by wrapping them.
+// Chain chains multiple errors into a single error by wrapping them.
 // Any nil error values are discarded.
-// Merge returns nil if every value in errs is nil.
-// Merge adds a stacktrace to the error if there was no stacktrace
+// Chain returns nil if every value in errs is nil.
+// Chain adds a stacktrace to the error if there was no stacktrace
 // in the error tree yet and if the build flag "stacktrace" is set.
-func Merge(errs ...error) error {
+func Chain(errs ...error) error {
 	var result error
 	for _, err := range errs {
 		if err == nil {

ierrors/ierrors_stacktrace.go

@@ -82,12 +82,12 @@ func Join(errs ...error) error {
 	return ensureStacktraceUniqueness(errors.Join(errs...))
 }
 
-// Merge merges multiple errors into a single error by wrapping them.
+// Chain chains multiple errors into a single error by wrapping them.
 // Any nil error values are discarded.
-// Merge returns nil if every value in errs is nil.
-// Merge adds a stacktrace to the error if there was no stacktrace
+// Chain returns nil if every value in errs is nil.
+// Chain adds a stacktrace to the error if there was no stacktrace
 // in the error tree yet and if the build flag "stacktrace" is set.
-func Merge(errs ...error) error {
+func Chain(errs ...error) error {
 	var result error
 	for _, err := range errs {
 		if err == nil {

ierrors/ierrors_stacktrace_test.go

@@ -64,6 +64,6 @@ func TestErrors(t *testing.T) {
 	err15 := WithStack(errStacktrace)
 	require.Equal(t, 1, strings.Count(err15.Error(), "github.com/iotaledger/hive.go/ierrors.TestErrors"))
 
-	err16 := Merge(New("err16"), New("merged"))
+	err16 := Chain(New("err16"), New("chained"))
 	require.Equal(t, 1, strings.Count(err16.Error(), "github.com/iotaledger/hive.go/ierrors.TestErrors"))
 }