crash with 0.11.3 when using generic variadics

[matthargett]

code:

local function mergeDeep<T...>(...: T...) -- : TupleToIntersection<...T>
	return mergeDeepArray({ ... })
end

crash:

thread '<unnamed>' panicked at 'unknown node GenericVariadic { name: TokenReference { leading_trivia: [], token: Token { start_position: Position { bytes: 36, line: 1, character: 37 }, end_position: Position { bytes: 37, line: 1, character: 38 }, token_type: Identifier { identifier: ShortString("T") } }, trailing_trivia: [] }, ellipse: TokenReference { leading_trivia: [], token: Token { start_position: Position { bytes: 37, line: 1, character: 38 }, end_position: Position { bytes: 40, line: 1, character: 41 }, token_type: Symbol { symbol: Ellipse } }, trailing_trivia: [] } }', src/formatters/luau.rs:340:18
stack backtrace:
   0: _rust_begin_unwind
   1: std::panicking::begin_panic_fmt
   2: stylua_lib::formatters::luau::format_type_info
   3: stylua_lib::formatters::luau::format_type_specifier
   4: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
   5: <core::iter::adapters::chain::Chain<A,B> as core::iter::traits::iterator::Iterator>::fold
   6: stylua_lib::formatters::functions::format_function_body
   7: stylua_lib::formatters::functions::format_local_function
   8: stylua_lib::formatters::stmt::format_stmt
   9: stylua_lib::formatters::block::format_block
  10: stylua_lib::formatters::CodeFormatter::format
  11: stylua_lib::format_code
  12: <F as threadpool::FnBox>::call_box
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.