[Sanitizer] Print stack trace when program aborts.

We too often miss the context when an assertion fails,
especially if it is buried in helper function.
This CL instructs clang sanitizers to dump a stack track when abort occurs.

Ref: https://github.com/google/sanitizers/wiki/SanitizerCommonFlags

Bug: webrtc:9849
Change-Id: I5bdf47279275f9bb67ba4abbe9d67a70d6e4b90b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1518579
Reviewed-by: Dirk Pranke <[email protected]>
Commit-Queue: Yves Gerey <[email protected]>
Cr-Commit-Position: refs/heads/master@{#640253}
1 file changed