[CHERRY-PICK] BaseTools: Fix owner-aware DSC arch macro expansion [Rebase & FF]

[Bob Chen (Bob0505)]

Description

This cherry-picks two upstream EDK II BaseTools fixes into release/202511:

• tianocore/edk2#12628 expands DSC architecture macros for all component records and component-private sub-items.
• tianocore/edk2#13022 makes that expansion owner-aware, leaves ordinary include-provenance records unchanged, resets owner mappings between post-processing runs, and adds parser regression coverage.

This preserves private LibraryClasses and PCD bindings under sections such as [Components.$(PEI_ARCH)] without applying component-specific expansion to unrelated included records. Both commits retain their original authorship and cherry picked from provenance.

• Impacts functionality?
• Impacts security?
• Breaking change?
• Includes tests?
• Includes documentation?

How This Was Tested

• Windows Python 3.12.10: python -B -m unittest BaseTools.Tests.MetaFileParserTests ΓÇö 11/11 passed.
• Windows Python 3.12.10: python -B BaseTools\Tests\PythonToolsTests.py ΓÇö 320/320 passed.
• WSL Ubuntu Python 3.12.3: PYTHONPATH=BaseTools/Source/Python:BaseTools/Tests python3 -B BaseTools/Tests/PythonToolsTests.py ΓÇö 320/320 passed.
• python -B BaseTools\Scripts\PatchCheck.py e7c1a028c47981a16805ecee845db232ccf0b5a2 - code checks passed; commit-message validation reports the required release-branch [CHERRY-PICK] prefix as outside the upstream subject grammar.
• python -B BaseTools\Scripts\PatchCheck.py fb65732b16651e6a30106c2dfc7bffe71d9b6f5d - code checks passed; commit-message validation reports the required release-branch [CHERRY-PICK] prefix as outside the upstream subject grammar.
• python -B -m py_compile passed for all three changed Python files.
• CRLF-aware git diff --check, UTF-8 decoding, final-newline, and trailing-whitespace checks passed.
• Stable patch IDs match the upstream commits exactly.

Integration Instructions

N/A

[mu-automation]

❌ QEMU Validation Failed

Source Dependencies

Repository	Commit
mu_basecore	fb65732
mu_tiano_platforms	7c27a38

Results

Platform	Target	Build	Boot	Overall Boot Time	Build Logs	Boot Logs
Q35	DEBUG	❌ failure	⏩ skipped	N/A	Build Logs	N/A
ArmVirt	DEBUG	✅ success	✅ success	0m 14s	Build Logs	Boot Logs

Workflow run: https://github.com/microsoft/mu_basecore/actions/runs/33586704899

This comment was automatically generated by the Mu QEMU PR Validation workflow.

[Bob Chen (Bob0505)]

Hi Aaron (@apop5), could you please review this release/202511 BaseTools backport? It cherry-picks the merged upstream fixes from tianocore/edk2#12628 and tianocore/edk2#13022 with matching stable patch IDs. The focused parser tests passed 11/11, and the aggregate BaseTools Python suite passed 320/320 on both Windows and WSL. Thank you.

[Codecov Comments Bot (codecov-commenter)]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (release/202511@12f8ff0). Learn more about missing BASE report.

Additional details and impacted files

@@                Coverage Diff                @@
##             release/202511    #1904   +/-   ##
=================================================
  Coverage                  ?    2.23%           
=================================================
  Files                     ?     1670           
  Lines                     ?   427111           
  Branches                  ?     5079           
=================================================
  Hits                      ?     9529           
  Misses                    ?   417498           
  Partials                  ?       84           

Flag	Coverage Δ
FmpDevicePkg	9.53% <ø> (?)
MdeModulePkg	1.65% <ø> (?)
MdePkg	5.44% <ø> (?)
NetworkPkg	0.55% <ø> (?)
PolicyServicePkg	30.42% <ø> (?)
SecurityPkg	1.56% <ø> (?)
StandaloneMmPkg	0.50% <ø> (?)
UefiCpuPkg	4.78% <ø> (?)
UnitTestFrameworkPkg	11.70% <ø> (?)

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[Michael Kubacki (makubacki)]

Bob Chen (@Bob0505), the commit content itself looks fine to me, but please update each commit message to prepend the current commit subject line with "[CHERRY-PICK]".

[Michael Kubacki (makubacki)]

Approved, waiting for commit message updates.

[Bob Chen (Bob0505)]

@microsoft-github-policy-service agree company="UST Global Singapore Pte Limited"

[Bob Chen (Bob0505)]

Hi Michael Kubacki (@makubacki), I updated both commit subjects to prepend [CHERRY-PICK] as requested and rebased the branch onto the latest release/202511. The patch content and stable patch IDs are unchanged. The focused parser suite passed 11/11, and the aggregate BaseTools Python suite passed 320/320 on both Windows and WSL. Thank you.