Val is already of uint64_t.

Update entry_point for all pal versions below 3.6.
3.6 and above removes entry_point.

Old entry-point metadata being updated. Nothing is required
to account for deprecation as nothing uses the old style

Generated automatically with:
$ clang-tidy -fix -checks=-*,llvm-qualified-auto $(find
lib/Target/AMDGPU/ -type f)

Converts AMDGPUResourceUsageAnalysis pass from Module to MachineFunction
pass. Moves function resource info propagation to to MC layer (through
helpers in AMDGPUMCResourceInfo) by generating MCExprs for every
function resource which the emitters have been prepped for.

Fixes https://github.com/llvm/llvm-project/issues/64863

Allows MCExprs as passed values to PALMetadata. Also adds related
`DelayedMCExpr` classes which serve as a pseudo-fixup to resolve MCExprs
as late as possible (i.e., right before emit through string or blob,
where they should be resolvable).

This was causing an assert on invalid in the modified test case.

For chain functions, PAL uses a `backend_stack_size` metadata item,
which at the moment has the same meaning as `stack_frame_size_in_bytes`.
We emit both for now in order to simplify coordination with PAL.

The new item must be emitted in the `shader_functions` section, just as
the metadata for other module entry functions. For simplicity, we mark
chain functions as module entry functions and emit the same metadata for
all of them.