globalType: support typepatch

internal/lib/sync/sync.go

@@ -58,7 +58,6 @@ type Once struct {
 }
 
 func (o *Once) Do(f func()) {
-	println("Once.Do start", o.done)
 	if !o.done {
 		o.m.Lock()
 		defer o.m.Unlock()

internal/typepatch/patch.go

@@ -60,6 +60,9 @@ const (
 )
 
 func IsPatched(pkg *types.Package) bool {
+	if pkg == nil {
+		return false
+	}
 	p := (*typesPackage)(unsafe.Pointer(pkg))
 	return *(*uint8)(unsafe.Pointer(&p.complete)) == tagPatched
 }