wip: Reduce test differences [ci-skip]

 - Handle UTF-16 surrogate pairs
 - Handle cycles in values
 - Handle cycles in types
 - Better errors
 - Handle case-folding of struct field names
 - Allow []byteTypeWithMethods
 - Fix struct field-order
 - Fix handling of interfaces storing pointers
 - Enforce a maximum decode depth
 - Validate struct tags

1 files changed, 14 insertions, 0 deletions

diff --git a/compat/json/borrowed_misc.go b/compat/json/borrowed_misc.go
new file mode 100644
index 0000000..30a3b0e
--- /dev/null
+++ b/compat/json/borrowed_misc.go
@@ -0,0 +1,14 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package json
+
+// A SyntaxError is a description of a JSON syntax error.
+// Unmarshal will return a SyntaxError if the JSON can't be parsed.
+type SyntaxError struct {
+	msg    string // description of error
+	Offset int64  // error occurred after reading Offset bytes
+}
+
+func (e *SyntaxError) Error() string { return e.msg }