Integrate StackTraces.jl into Base

[spurll]

A few people in the community have been looking for stacktrace/backtrace functionality that is easier to use programmatically than what is currently provided by Base.backtrace. StackTraces.jl provides an immutable StackFrame type that simplifies interacting with a stack trace. (It can be used to add stack trace information when logging with Lumberjack.jl for example.)

@jakebolewski and @iamed2 have recommended that this package be included in Base.

[JeffBezanson]

+1

This functionality is very reasonable and compact, and might even simplify things in Base.

[ihnorton]

👍 Though would be good to unify/refactor with the functions and data structures in Profile so that we don't have two names for a number of nearly-identical things. (e.g. LineInfo)

[tkelman]

Agreed, there's some overlap with profile. This kind of thing will be really useful for tooling, debugger interfaces etc so may as well agree on a data structure for it.

[StefanKarpinski]

+1 – @spurll, do you want to make a PR?

[spurll]

Will do. I'm heading out for the night, but barring catastrophe I'll do it first thing tomorrow. Thanks for the feedback, folks!

[spurll]

Wow, this took longer than I expected. I've done some refactoring to address redundancies with Profile. I plan to issue the pull request on Monday.

[spurll]

PR is submitted: #14469

[yuyichao]

Closed by #14815 ?