[llvm] [mlir][bytecode] Check that bytecode source buffer is sufficiently aligned. (PR #66380)

[Christian Sigg via llvm-commits]

chsigg wrote:

I added a test for insufficient alignment and increased the resource's alignment to 32, so that we don't get lucky on systems where strings happen to be 16 byte aligned.

https://github.com/llvm/llvm-project/pull/66380