Parse object files with ElfFile64
rather than object::File
#8593
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The latter is what Wasmtime uses today but it pulls in parsers for all object formats supported by
object
. In the context of Wasmtime, however, we know that all objects produced are 64-bit ELF files so there's no need to pull in, for example, a COFF parser as that'll always return an error anyway. This commit switches uses of theobject::File
convenience toElfFile64
instead.