remove type ValueFunc from package gcache

debug/gdebug/gdebug_stack.go

@@ -9,7 +9,6 @@ package gdebug
 import (
 	"bytes"
 	"fmt"
-	"path/filepath"
 	"runtime"
 	"strings"
 )
@@ -72,10 +71,6 @@ func StackWithFilters(filters []string, skip ...int) string {
 			// Custom filtering.
 			filtered = false
 			for _, filter := range filters {
-				// Ignore test files.
-				if strings.HasSuffix(filepath.Base(file), "_test.go") {
-					break
-				}
 				if filter != "" && strings.Contains(file, filter) {
 					filtered = true
 					break