Update DIA to latest

[Austin Lamb (Austin-Lamb)]

Why is this change being made?

DIA has a lot of new features since SizeBench last took an update - for example it has prefetching capabilities that may improve perf, and it has support for MSFZ compressed PDBs.

Picking this up enables SizeBench to read newer PDBs.

Briefly summarize what changed

• Update DIA to the latest Visual Studio 2026 release (June 2026)
• Adopt new DIA APIs such as the ability for DIA to detect fastlink PDBs and Portable PDBs so SizeBench does not attempt to analyze things it can't handle anyway.
• The new DIA adds support for parsing PDBs from Go, as well as a new basic type for ARM scalable vectors, so add minimal support to the parts of SizeBench affected by this.
• The new DIA can better support C _Atomic so added support for parsing such type names, and I noticed we lacked __restrict nearby, so doing both at once.
• This version of DIA includes changes for "PDB hardening" where DIA can report E_PDB_CORRUPT in more places which triggers in the SizeBench test suite because we have PDBs generated with symbols from older versions of MASM. So, we tolerate more cases in determining when E_PDB_CORRUPT can be worked around, so the test suite continues to pass.

How was the change tested?

Currently relying on existing test suite. It would be ideal to add some tests for _Atomic and __restrict but for purposes of time invested, I'm skipping that ideal world for now.

PR Checklist

• Contributor License Agreement (CLA) has been signed. If not, go here and sign the CLA
• Changes have been validated
• Documentation updated. Please add or update any docs in the repo as necessary.