Profile: Add a native way to display allocation profiler output

[IanButterworth]

AFAIK the allocation profiler added in 1.8 doesn't have a native way to view the output, akin to Profile.print().

It seems reasonable to expect Profile to be able to make a basic report, and not fully depend on external packages (PProf / the vscode extension)

[nickrobinson251]

(For those who land on this issue but not #45268...) @vtjnash shared some code for a Profile.Allocs.print (#45268 (comment)): https://gist.github.com/vtjnash/c6aa4db9dafccb0fd28a65f87d6b1adb

I've been trying it out and found it pretty helpful!

What would be needed to get that functionality merged in?

[vtjnash]

Probably someone writing a couple basic tests and making a PR ;)

[IanButterworth]

Was closed by #51981