allow comments on non-diff lines (#32257)

Signed-off-by: abhishek818 <abhishekguptaatweb17@gmail.com>

services/gitdiff/gitdiff.go

@@ -118,7 +118,7 @@ func (d *DiffLine) GetHTMLDiffLineType() string {
 
 // CanComment returns whether a line can get commented
 func (d *DiffLine) CanComment() bool {
-	return len(d.Comments) == 0 && d.Type != DiffLineSection
+	return len(d.Comments) == 0
 }
 
 // GetCommentSide returns the comment side of the first comment, if not set returns empty string

services/gitdiff/gitdiff_test.go

@@ -615,7 +615,7 @@ func TestDiff_LoadCommentsWithOutdated(t *testing.T) {
 }
 
 func TestDiffLine_CanComment(t *testing.T) {
-	assert.False(t, (&DiffLine{Type: DiffLineSection}).CanComment())
+	assert.True(t, (&DiffLine{Type: DiffLineSection}).CanComment())
 	assert.False(t, (&DiffLine{Type: DiffLineAdd, Comments: []*issues_model.Comment{{Content: "bla"}}}).CanComment())
 	assert.True(t, (&DiffLine{Type: DiffLineAdd}).CanComment())
 	assert.True(t, (&DiffLine{Type: DiffLineDel}).CanComment())