hideshow: Fix regressions. (Bug#79857)

* lisp/progmodes/hideshow.el (hs-block-positions): Exit the
function if 'hs-forward-sexp' fails.
(hs-hide-level-recursive): Fix infloop.
* test/lisp/progmodes/hideshow-tests.el (hideshow-hide-level-1):
(hideshow-hide-level-2): Update tests.

1 files changed, 8 insertions, 0 deletions

diff --git a/test/lisp/progmodes/hideshow-tests.el b/test/lisp/progmodes/hideshow-tests.el
index a6b3ecfbd3d..9cf60c1ec84 100644
--- a/test/lisp/progmodes/hideshow-tests.el
+++ b/test/lisp/progmodes/hideshow-tests.el
@@ -254,6 +254,8 @@ sub()
    Comments
 */
 
+\"String\"
+
 int
 main(int argc, char **argv)
 {
@@ -270,6 +272,8 @@ main(int argc, char **argv)
    Comments
 */
 
+\"String\"
+
 int
 main(int argc, char **argv)
 {}
@@ -284,6 +288,8 @@ main(int argc, char **argv)
    Comments
 */
 
+\"String\"
+
 int
 main(int argc, char **argv)
 {
@@ -300,6 +306,8 @@ main(int argc, char **argv)
    Comments
 */
 
+\"String\"
+
 int
 main(int argc, char **argv)
 {