Suppress leak detector in some cases

We intentionally leak some objects.  Prevent the ASan leak detector
from raising false alarms in these cases.

* configure.ac: Search for lsan_interface.h header.

* src/data.c (make_blv): Allow leaking of buffer-local values.

* src/buffer.c (enlarge_buffer_text): Allow leaking of buffer text.

* src/emacs-module.c (Fmodule_load, initialize_environment): Allow
intentional leak of runtime and environment objects if module
assertions are enabled.
1 job for master in 10 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #6783
test-all

00:00:10

 
Name Stage Failure
failed
test-all Test
error: cannot lock ref 'refs/remotes/origin/master': Unable to create '/builds/emacs/emacs/.git/refs/remotes/origin/master.lock': File exists.

Another git process seems to be running in this repository, e.g.
an editor opened by 'git commit'. Please make sure all processes
are terminated then try again. If it still fails, a git process
may have crashed in this repository earlier:
remove the file manually to continue.
fatal: failed to run reflog
ERROR: Job failed: exit code 1