runtime: support syscall/js

runtime/build.go

@@ -47,6 +47,7 @@ var hasAltPkg = map[string]none{
 	"sync":                     {},
 	"sync/atomic":              {},
 	"syscall":                  {},
+	"syscall/js":               {},
 	"time":                     {},
 	"os":                       {},
 	"os/exec":                  {},

runtime/internal/lib/syscall/js/emval.go

@@ -7,7 +7,7 @@ import (
 	_ "unsafe"
 
 	c "github.com/goplus/llgo/runtime/internal/clite"
-	_ "github.com/goplus/llgo/runtime/js/embind"
+	_ "github.com/goplus/llgo/runtime/internal/embind"
 )
 
 var (

runtime/internal/lib/syscall/js/js.go

@@ -18,6 +18,9 @@ import (
 	c "github.com/goplus/llgo/runtime/internal/clite"
 )
 
+//llgo:skipall
+type _js struct{}
+
 // Value represents a JavaScript value. The zero value is the JavaScript value "undefined".
 // Values can be checked for equality with the Equal method.
 type Value struct {