Rafael Espindola d96d553d76 Pass a MemoryBufferRef when we can avoid taking ownership. ...

The attached patch simplifies a few interfaces that don't need to take
ownership of a buffer.

For example, both parseAssembly and parseBitcodeFile will parse the
entire buffer before returning. There is no need to take ownership.

Using a MemoryBufferRef makes it obvious in the type signature that
there is no ownership transfer.

llvm-svn: 216488

2014-08-26 21:49:01 +00:00

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