moved scanner sources to package 'scan'

t_common_test.go

@@ -10,6 +10,7 @@ import (
 	"testing"
 
 	"git.portale-stac.it/go-pkg/expr/kern"
+	"git.portale-stac.it/go-pkg/expr/scan"
 )
 
 type inputType struct {
@@ -70,7 +71,7 @@ func getWantedError(input *inputType) error {
 }
 
 func doTest(t *testing.T, ctx kern.ExprContext, section string, input *inputType, count int) (good bool) {
-	var ast Expr
+	var ast kern.Expr
 	var gotResult any
 	var gotErr error
 
@@ -84,7 +85,7 @@ func doTest(t *testing.T, ctx kern.ExprContext, section string, input *inputType
 	logTest(t, count, section, input.source, input.wantResult, wantErr)
 
 	r := strings.NewReader(input.source)
-	scanner := NewScanner(r, DefaultTranslations())
+	scanner := scan.NewScanner(r, scan.DefaultTranslations())
 
 	good = true
 	if ast, gotErr = parser.Parse(scanner); gotErr == nil {