[chore] Update gin to v1.9.0 (#1553)

vendor/github.com/bytedance/sonic/ast/stubs_go115.go

@@ -0,0 +1,55 @@
+// +build !go1.20
+
+/*
+ * Copyright 2021 ByteDance Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ast
+
+import (
+    `unsafe`
+    `unicode/utf8`
+
+    `github.com/bytedance/sonic/internal/rt`
+)
+
+//go:noescape
+//go:linkname memmove runtime.memmove
+//goland:noinspection GoUnusedParameter
+func memmove(to unsafe.Pointer, from unsafe.Pointer, n uintptr)
+
+//go:linkname unsafe_NewArray reflect.unsafe_NewArray
+//goland:noinspection GoUnusedParameter
+func unsafe_NewArray(typ *rt.GoType, n int) unsafe.Pointer
+
+//go:linkname growslice runtime.growslice
+//goland:noinspection GoUnusedParameter
+func growslice(et *rt.GoType, old rt.GoSlice, cap int) rt.GoSlice
+
+//go:nosplit
+func mem2ptr(s []byte) unsafe.Pointer {
+    return (*rt.GoSlice)(unsafe.Pointer(&s)).Ptr
+}
+
+var (
+    //go:linkname safeSet encoding/json.safeSet
+    safeSet [utf8.RuneSelf]bool
+
+    //go:linkname hex encoding/json.hex
+    hex string
+)
+
+//go:linkname unquoteBytes encoding/json.unquoteBytes
+func unquoteBytes(s []byte) (t []byte, ok bool)