chore: groups nilerr files to a package

Author: ldez

pkg/golinters/nilerr.go renamed to pkg/golinters/nilerr/nilerr.go

@@ -1,4 +1,4 @@
-package golinters
+package nilerr
 
 import (
 	"github.com/gostaticanalysis/nilerr"
@@ -7,7 +7,7 @@ import (
 	"github.com/golangci/golangci-lint/pkg/goanalysis"
 )
 
-func NewNilErr() *goanalysis.Linter {
+func New() *goanalysis.Linter {
 	a := nilerr.Analyzer
 
 	return goanalysis.NewLinter(

pkg/golinters/nilerr/nilerr_integration_test.go

@@ -0,0 +1,11 @@
+package nilerr
+
+import (
+	"testing"
+
+	"github.com/golangci/golangci-lint/test/testshared/integration"
+)
+
+func TestFromTestdata(t *testing.T) {
+	integration.RunTestdata(t)
+}

test/testdata/nilerr.go renamed to pkg/golinters/nilerr/testdata/nilerr.go

@@ -70,6 +70,7 @@ import (
 	"github.com/golangci/golangci-lint/pkg/golinters/musttag"
 	"github.com/golangci/golangci-lint/pkg/golinters/nakedret"
 	"github.com/golangci/golangci-lint/pkg/golinters/nestif"
+	"github.com/golangci/golangci-lint/pkg/golinters/nilerr"
 	"github.com/golangci/golangci-lint/pkg/golinters/nolintlint"
 	"github.com/golangci/golangci-lint/pkg/golinters/protogetter"
 	"github.com/golangci/golangci-lint/pkg/golinters/spancheck"
@@ -533,7 +534,7 @@ func (LinterBuilder) Build(cfg *config.Config) ([]*linter.Config, error) {
 			WithPresets(linter.PresetComplexity).
 			WithURL("https://github.com/nakabonne/nestif"),
 
-		linter.NewConfig(golinters.NewNilErr()).
+		linter.NewConfig(nilerr.New()).
 			WithSince("v1.38.0").
 			WithLoadForGoAnalysis().
 			WithPresets(linter.PresetBugs).