Generate g for today's state of Go 1.20 (go1.20-0-gde4748c47c).
Compared to Go1.19 goid is changed from int64 -> to uint64, and that
more variables, that are used atomically, now use atomic.X types.

Regenerated files stay without changes for Go1.19 and previous releases.

---- 8< ----
diff --git a/zruntime_g_go1.19.go b/zruntime_g_go1.20.go
index 707aadd..99f483a 100644
--- a/zruntime_g_go1.19.go
+++ b/zruntime_g_go1.20.go
@@ -1,7 +1,7 @@
 // Code generated by g_typedef; DO NOT EDIT.

-//go:build go1.19 && !go1.20
-// +build go1.19,!go1.20
+//go:build go1.20 && !go1.21
+// +build go1.20,!go1.21

 package xruntime

@@ -39,9 +39,9 @@ type g struct {
 	// 3. By debugCallWrap to pass parameters to a new goroutine because allocating a
 	//    closure in the runtime is forbidden.
 	param        unsafe.Pointer
-	atomicstatus uint32
+	atomicstatus atomic.Uint32
 	stackLock    uint32 // sigprof/scang lock; TODO: fold in to atomicstatus
-	goid         int64
+	goid         uint64
 	schedlink    guintptr
 	waitsince    int64      // approx time when the g become blocked
 	waitreason   waitReason // if status==Gwaiting
@@ -65,14 +65,14 @@ type g struct {
 	activeStackChans bool
 	// parkingOnChan indicates that the goroutine is about to
 	// park on a chansend or chanrecv. Used to signal an unsafe point
-	// for stack shrinking. It's a boolean value, but is updated atomically.
-	parkingOnChan uint8
+	// for stack shrinking.
+	parkingOnChan atomic.Bool

 	raceignore     int8     // ignore race detection events
 	sysblocktraced bool     // StartTrace has emitted EvGoInSyscall about this goroutine
 	tracking       bool     // whether we're tracking this G for sched latency statistics
 	trackingSeq    uint8    // used to decide whether to track this G
-	runnableStamp  int64    // timestamp of when the G last became runnable, only used when tracking
+	trackingStamp  int64    // timestamp of when the G last started being tracked
 	runnableTime   int64    // the amount of time spent runnable, cleared when running, only used when tracking
 	sysexitticks   int64    // cputicks when syscall has returned (for tracing)
 	traceseq       uint64   // trace event sequencer
@@ -91,7 +91,7 @@ type g struct {
 	cgoCtxt        []uintptr      // cgo traceback context
 	labels         unsafe.Pointer // profiler labels
 	timer          *timer         // cached timer for time.Sleep
-	selectDone     uint32         // are we participating in a select and did someone win the race?
+	selectDone     atomic.Uint32  // are we participating in a select and did someone win the race?

 	// goroutineProfiled indicates the status of this goroutine's stack for the
 	// current in-progress goroutine profile
@@ -190,7 +190,7 @@ type timer struct {
 	nextwhen int64

 	// The status field holds one of the values below.
-	status uint32
+	status atomic.Uint32
 }
 type guintptr uintptr
 type puintptr uintptr
@@ -198,7 +198,7 @@ type muintptr uintptr
 type waitReason uint8
 type ancestorInfo struct {
 	pcs  []uintptr // pcs from the stack of this goroutine
-	goid int64     // goroutine id of this goroutine; original goroutine possibly dead
+	goid uint64    // goroutine id of this goroutine; original goroutine possibly dead
 	gopc uintptr   // pc of go statement that created this goroutine
 }
 type goroutineProfileStateHolder atomic.Uint32