Windows crash logs don't show source code from JavaScriptCore headers. See the URL for an example. Not that there's no FAILING_SOURCE_CODE section. This is because the header's path is somewhere in the builder's WebKitBuild directory (since we copy headers there as part of the build process). This happens whenever WebCore/WebKit calls into code in a JSC header and crashes. It would be great to get source code for these crashes. Maybe we can add more source paths to ntsd to make it work.
<rdar://problem/9509365>