fix:unexpected gop overload completion in go

Author: luoliwoshang

gopls/internal/lsp/source/completion/deep_completion.go

@@ -10,6 +10,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/goplus/gogen"
 	"github.com/qiniu/x/log"
 	"golang.org/x/tools/gopls/internal/goxls"
 )
@@ -131,14 +132,17 @@ func (c *completer) deepSearch(ctx context.Context, start time.Time, deadline *t
 	for len(c.deepState.nextQueue) > 0 && (first || deadline == nil || time.Now().Before(*deadline)) {
 		first = false
 		c.deepState.thisQueue, c.deepState.nextQueue = c.deepState.nextQueue, c.deepState.thisQueue[:0]
-
 	outer:
 		for _, cand := range c.deepState.thisQueue {
 			obj := cand.obj
 			if obj == nil {
 				continue
 			}
-
+			if sig, ok := obj.Type().(*types.Signature); ok {
+				if _, ok := gogen.CheckSigFuncEx(sig); ok {
+					continue
+				}
+			}
 			// At the top level, dedupe by object.
 			if len(cand.path) == 0 {
 				if c.seen[obj] {