luajit: bump new version

* Fix maxslots when recording BC_TSETM.
* Fix TDUP load forwarding after table rehash.
* Fix binary number literal parsing.
* Fix maxslots when recording BC_VARG, part 3.
* test: fix flaky <unit-jit-parse.test.lua> again
* Fix predict_next() in parser.
* Revert to trivial pow() optimizations to prevent inaccuracies.
* Fix pow() optimization inconsistencies.
* Improve assertions.
* Remove pow() splitting and cleanup backends.
* test: introduce `samevalues()` TAP checker
* MIPS: Add MIPS64 R6 port.
* DynASM/MIPS: Fix shadowed variable.
* MIPS64: Fix register allocation in assembly of HREF.
* Prevent integer overflow while parsing long strings.
* Fix LJ_MAX_JSLOTS assertion in rec_check_slots().
* Fix debug.getinfo() argument check.
* ARM: Fix GCC 7 -Wimplicit-fallthrough warnings.
* DynASM: Fix warning.
* Fix GCC 7 -Wimplicit-fallthrough warnings.
* Cleanup math function compilation and fix inconsistencies.
* FFI: Eliminate hardcoded string hashes.
* Windows: Add UWP support, part 1.
* build: fix non-Linux/macOS builds
* PPC: Add soft-float support to JIT compiler backend.
* PPC: Add soft-float support to interpreter.
* MIPS64: Add soft-float support to JIT compiler backend.
* MIPS: Fix handling of spare long-range jump slots.
* test: introduce mcode generator for tests
* MIPS: Use precise search for exit jump patching.
* sysprof: improve parser's memory footprint
* tools: add execution permission to sysprof parser
* sysprof: remove `split by vmstate` option

Part of #8825

NO_DOC=LuaJIT submodule bump
NO_TEST=LuaJIT submodule bump

changelogs/unreleased/gh-8825-luajit-fixes.md

@@ -7,3 +7,10 @@ were fixed as part of this activity:
 * Fixed recording of `BC_VARG` with unused vararg values.
 * Initialization instructions on trace are now emitted only for the first
   member of a union.
+* Prevent integer overflow while parsing long strings.
+* Fixed various `^` operator and `math.pow()` function inconsistencies.
+* Fixed parsing with predicting `next()` and `pairs()`.
+* Fixed binary number literal parsing. Parsing of binary number with a zero
+  fractional part raises error too now.
+* Fixed load forwarding optimization applied after table rehashing.
+* Fixed recording of the `BC_TSETM`.

luajit @ 3a16be9b

-Subproject commit f0d6df40e65dc0c04c9477d33a22f295be68f53e
+Subproject commit 3a16be9bcc3ca5d818ab2e9f5b996153ef20b85a