replace last occurence of afero with osFs

go.mod

@@ -30,7 +30,7 @@ require (
 	github.com/pmezard/go-difflib v1.0.0
 	github.com/shurcooL/httpfs v0.0.0-20190707220628-8d4bc4ba7749 // indirect
 	github.com/shurcooL/vfsgen v0.0.0-20200824052919-0d455de96546
-	github.com/spf13/afero v1.8.0
+	github.com/spf13/afero v1.8.0 // indirect
 	github.com/stretchr/testify v1.7.0
 	github.com/vektra/mockery/v2 v2.9.4
 	github.com/zclconf/go-cty v1.10.0

internal/terraform/parser/module_test.go

@@ -2,13 +2,14 @@ package parser
 
 import (
 	"fmt"
+	"io/fs"
+	"os"
 	"path/filepath"
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
 	"github.com/hashicorp/hcl/v2"
 	"github.com/hashicorp/terraform-ls/internal/terraform/ast"
-	"github.com/spf13/afero"
 )
 
 func TestParseModuleFiles(t *testing.T) {
@@ -82,7 +83,7 @@ func TestParseModuleFiles(t *testing.T) {
 		},
 	}
 
-	fs := afero.NewIOFS(afero.NewOsFs())
+	fs := osFs{}
 
 	for i, tc := range testCases {
 		t.Run(fmt.Sprintf("%d-%s", i, tc.dirName), func(t *testing.T) {
@@ -112,3 +113,21 @@ func mapKeys(mf ast.ModFiles) map[string]struct{} {
 	}
 	return m
 }
+
+type osFs struct{}
+
+func (osfs osFs) Open(name string) (fs.File, error) {
+	return os.Open(name)
+}
+
+func (osfs osFs) Stat(name string) (fs.FileInfo, error) {
+	return os.Stat(name)
+}
+
+func (osfs osFs) ReadDir(name string) ([]fs.DirEntry, error) {
+	return os.ReadDir(name)
+}
+
+func (osfs osFs) ReadFile(name string) ([]byte, error) {
+	return os.ReadFile(name)
+}