[clang] [analyzer] Add time-trace scopes for high-level analyzer steps (PR #125508)

[Arseniy Zaostrovnykh via cfe-commits]

necto wrote:

> I had a look at the PR, and it looks awesome. Could you please update the attached speedscope image? It looks like it's out of sync with the implementation, for example if you look at the "Loc PostStmt { ... stuff here ...}" , it appears to include the ProgramPoint dump, and according to your implementation it should only have "Loc ". Am I right?

speedscope puts the "details" onto the scope labels in addition to their name, unlike chrome-tracing that only displays the name, so that's the up-to-date display

https://github.com/llvm/llvm-project/pull/125508