fix typo in Windows "build.bat"
Win64: fix JIT floating-point constant

Repairs commit 71591a62a4 for Win64, where `long` != `intptr_t`
raco pkg: fix doc typo
optimizer report use-before-definition check at debug level

It's too common and noisy as a warning.
change `collection-file-path` to check for compiled by default for ".rkt"
adjust some `collection-file-path` calls to work with binary packages

In a few cases, sources should be preserved in binary mode.
raco decompile: fix for bytecode without source
racket/base: fix `module-compiled-submodules` name handling

Mandled name handling breaks pkg binary-mode submodule stripping.
Update re Robby
Ensure that explicit arguments are always run even when ignored by info.rkt
Add time and prep for better DrDr stderr UI
Fixing typo
Adding things to unstable/error that are painful to remember and used everywhere
Creating unstable/gui/pict/align
Add draw-pict-centered
adding plt-log
Correctly combine or filters in combine-props.

Closes PR 14534.
raco test: create fresh user directory for each test in DrDr mode
tests: remove "gui" lock declarations

The fresh PLTUSERHOME created by `raco test --drdr` should avoid
the problems that made the lock necessary before.
raco test: add `++ignore-stderr <pattern>` option

I'm using this option to ignore "Xlib: extension \"RANDR\" missing"
warnings.