Sync to upstream/release/630

[Vighnesh-V]

What's new

• A bug in exception handling in GCC(11/12/13) on MacOS prevents our test suite from running.
• Parser now supports leading | or & when declaring Union and Intersection types (implement leading bar and ampersand in types #1286)
• We now support parsing of attributes on functions as described in the rfc
  • With this change, expressions such as local x = @native function(x) return x+1 end and f(@native function(x) return x+1 end) are now
    valid.
• Added support for @native attribute - we can now force native compilation of individual functions if the @native attribute is specified before the function keyword (works for lambdas too).

New Solver

• Many fixes in the new solver for crashes and instability
• Refinements now use simplification and not normalization in a specific case of two tables
• Assume that compound assignments do not change the type of the left-side operand
• Fix error that prevented Class Methods from being overloaded

VM

• Updated description of Garbage Collector invariant

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Internal Contributors

Co-authored-by: Aaron Weiss [email protected]
Co-authored-by: Alexander McCord [email protected]
Co-authored-by: Andy Friesen [email protected]
Co-authored-by: Aviral Goel [email protected]
Co-authored-by: Vighnesh Vijay [email protected]
Co-authored-by: Vyacheslav Egorov [email protected]