DPC++ daily 2022-11-05

[SYCL] Enable aspect usage propagation pass and add diagnostics (#6982)

This commit adds a warning diagnostic for when there is a mismatch
between aspect usage propagated to a function and the function's
`device_has` attribute. Additionally, notes accompany the warning to
give the user a trace through to where the aspects originate. Since the
aspects are propagated in an LLVM pass, the warning is issued from
there, which means no source information is available by default. To
alleviate this, Clang CodeGen will now add srcloc metadata with an
encoded version of the source location to allow the backend to correctly
report the location for the various new diagnostics.

Additionally, this commit also adds the SYCLPropagateAspectsUsage pass
to the passes run for SYCL device code.

Signed-off-by: Larsen, Steffen <steffen.larsen@intel.com>
Co-authored-by: Sabianin, Maksim <maksim.sabianin@intel.com>