DevTools: improve regexp to source map stack traces
DevTools: improve regexp to source map stack traces

R=26192f5e05d23e5ee959014fb911d780e566545b@chromium.org

Bug: chromium:973782
Change-Id: I233a4c8d971396247c9a4391f399eaf0ad1f662b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1702268
Auto-Submit: Yang Guo <1cf0af8245a3a17a632a2c73531392b0f9761c76@chromium.org>
Reviewed-by: Erik Luo <26192f5e05d23e5ee959014fb911d780e566545b@chromium.org>
Commit-Queue: Yang Guo <1cf0af8245a3a17a632a2c73531392b0f9761c76@chromium.org>
Cr-Original-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#678586}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: b9baaa49ee9f5646999dc564b861567cb45e867c

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend