0.519

Analysis changes

• Fix pointer identity issues with declared global types (fixes #409)
• Improve autocomplete for self calls (via :)
• Fix type checking of function definitions when extending a table with string indexer
• Fix some cases when any type wasn't treated as optional by the type checker
• Fix some interactions with discriminable unions during type checking
• Improve type checking stability

Runtime changes

• Add C API to access memory category information (lua_setmemcat and lua_totalbytes) for memory profiling
• Fix typeof() semantics for untagged host-exposed user data: now typeof() returns __type metafield for all host-exposed userdata (but not userdata created via newproxy())
• Fix definition of lua_clonefunction when LUA_API was customized in the build process (fixes #411)
• Fix 32-bit Windows builds when using clang-cl (fixes #421)
• Optimize table rehashing (~15% faster dictionary table resize on average)

Community contributions

• Support yielding from interrupt callbacks #287 by @morgoth990 in #413