Attempt to automatically de/reference symlinked files

Currently for Node we sometimes require people to pass --preseve-symlinks (and document this) since Node dereferences scripts it loads, which can cause file paths to not patch up.

However we could also use fs.realPath to dereference them ourselves. Breakpoints should be applied in both places (since we won’t know which is the right one ahead of time). Still need to figure out how to deal with loaded sources, however, since when a source loads we need to tell VS code the path it knows about rather than the real path.

[connor4312]

@TylerLeonhardt this is expected since without preserve-symlinks-main, “real” is resolved to real/a.js, then it requires real/b.js without hitting the symlink at all.

[TylerLeonhardt]

So if I set a breakpoint in linked/b.js and line 2 of linked/a.js

if I just have "--preserve-symlinks-main" I go to real/b.js BUT linked/a.js (I expect this) if I have both "--preserve-symlinks-main" and "--preserve-symlinks" I go to linked/b.js and linked/a.js (I expect this) if I just have "--preserve-symlinks" I still go to the real/b.js and real/a.js (I don’t expect this - it should go to linked/b.js and then real/a.js no?)