Revert "fix: err code 迁移到各自的包下 (#65)" (#66)

This reverts commit ef397cab50.

jsonUtil/to_int_test.go

@@ -1,6 +1,7 @@
 package jsonUtil
 
 import (
+	"github.com/jefferyjob/go-easy-utils/v2"
 	"testing"
 )
 
@@ -30,8 +31,8 @@ func TestToInt64(t *testing.T) {
 		{complex64(1 + 2i), 1, nil},
 		{complex128(1 + 2i), 1, nil},
 		{nil, 0, nil},
-		{"not a number", 0, ErrSyntax},
-		{make(chan int), 0, ErrType},
+		{"not a number", 0, go_easy_utils.ErrSyntax},
+		{make(chan int), 0, go_easy_utils.ErrType},
 	}
 
 	for _, tt := range tests {