[PATCH v1 0/1] libgccjit: Fix UB in constructor functions

[Antoni Boucher via Sourceware Forge]

I checked all the other usages of `reinterpret_cast` in `libgccjit` and they seem safe.
Could someone please double-check that?

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https://forge.sourceware.org/gcc/gcc-TEST/pulls/124#issuecomment-4048