internal/lsp: fix return variables for FindPosInPackage

Change-Id: Icaa9595f05ab9583e60fc0392cbe21e1f20a3934
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208666
Run-TryBot: Rebecca Stambler <[email protected]>
Reviewed-by: Heschi Kreinick <[email protected]>

Author: stamblerre

internal/lsp/source/util.go

@@ -425,7 +425,7 @@ func formatParams(s Snapshot, pkg Package, sig *types.Signature, qf types.Qualif
 }
 
 func formatFieldType(s Snapshot, srcpkg Package, obj types.Object, qf types.Qualifier) (string, error) {
-	file, _, pkg, err := s.View().FindPosInPackage(srcpkg, obj.Pos())
+	file, pkg, err := s.View().FindPosInPackage(srcpkg, obj.Pos())
 	if err != nil {
 		return "", err
 	}