codegen: fix gc rooting bug #51744
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codegen: fix gc rooting bug #51744
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ccall was not creating roots for the contents of struct values which contained roots on the stack, as expected to align with `GC.@preserve`
vtjnash
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ccall was not creating roots for the contents of struct values which contained roots on the stack, as expected to align with
GC.@preserve, and causing many segfaults for #51319