type Expr = ast.Expr
	type identType = ast.Ident
	identName := func(n *identType) string { return n.Name }
	sKey, sValue := s.Key, s.Value
	var sExtra ast.Expr = nil // (used only in types2 fork)
	isDef := s.Tok == token.DEFINE
	rangeVar := s.X
	noNewVarPos := inNode(s, s.TokPos)

	// Everything from here on is shared between cmd/compile/internal/types2 and go/types.

//
//go:nowritebarrierrec
func newstack() {
	thisg := getg()
	// TODO: double check all gp. shouldn't be getg().
	if thisg.m.morebuf.g.ptr().stackguard0 == stackFork {
		throw("stack growth after fork")
	}
	if thisg.m.morebuf.g.ptr() != thisg.m.curg {
		print("runtime: newstack called from g=", hex(thisg.m.morebuf.g), "\n"+"\tm=", thisg.m, " m->curg=", thisg.m.curg, " m->g0=", thisg.m.g0, " m->gsignal=", thisg.m.gsignal, "\n")

// but not really be pointers, and adjusting their value would break the call.
//
// //go:norace, on RawSyscall, to avoid race instrumentation if RawSyscall is
// called after fork, or from a signal handler.
//
// //go:linkname to ensure ABI wrappers are generated for external callers
// (notably x/sys/unix assembly).

//go:uintptrkeepalive
//go:nosplit
//go:norace
//go:linkname RawSyscall

		// or v2/go.mod should exist and claim v2. Not both.
		// Note that we don't check the full path, just the major suffix,
		// because of replacement modules. This might be a fork of
		// the real module, found at a different path, usable only in
		// a replace directive.
		dir2 := path.Join(r.codeDir, r.pathMajor[1:])
		file2 = path.Join(dir2, "go.mod")

	}

	m := map[string]any{}
	err := unmarshal(j, &m)
	if err != nil {
		return nil, mergepatch.ErrBadJSONDoc
	}
	return m, nil
}

// StrategicMergePatchYAML is a small fork of strategicpatch.StrategicMergePatch to allow YAML patches
// This avoids expensive conversion from YAML to JSON
func StrategicMergePatchYAML(originalJSON []byte, patchYAML []byte, dataStruct any) ([]byte, error) {

	// and nExits subprocesses that exit immediately.
	//
	// When issue #61080 was present, a long-lived "hang" subprocess would
	// occasionally inherit the fork/exec status pipe from an "exit" subprocess,
	// causing the parent process (which expects to see an EOF on that pipe almost
	// immediately) to unexpectedly block on reading from the pipe.
	var (