Bugfix: Performance tool links don't work
Bugfix: Performance tool links don't work

Scripts are tracked by ScriptID, which is an opaque identifier based on
strings. However, when the performance nodes come through from V8,
they are numbers. This change coerces script IDs from the performance
profiles to be strings, thereby allowing the links to work as expected.

Bug: 1278650
Change-Id: I727bd5c93ed6b20f00f73b227627adf47c1b3820
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3387931
Reviewed-by: Robert Paveza <7787129de3d0cb4911c68d958db3023863584560@microsoft.com>
Reviewed-by: Benedikt Meurer <024a1e0af501338d11c3b837c6193d11c140d792@chromium.org>
Commit-Queue: Robert Paveza <7787129de3d0cb4911c68d958db3023863584560@microsoft.com>

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