Ignore symbolic metadata for lifted constants (#22056)

[JacobSzwejbka]

Summary:

D116957343 began lifting get_attr tensor constants after edge transforms. Constant-backed FakeTensor values can retain symbolic-looking shape metadata even though pass replay uses their attached concrete constants, causing a false symbolic-input validation failure.

Exclude constant-backed FakeTensor values from symbolic runtime-input snapshots while retaining validation for actual symbolic inputs.

Reviewed By: shoumikhin

Differential Revision: D117081177

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/22056

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

❌ 1 Cancelled Job

As of commit 325a290 with merge base 3c70c37 ():

CANCELLED JOB - The following job was cancelled. Please retry:

• Build documentation / build (buck2) / Build doc (gh)

This comment was automatically generated by Dr. CI and updates every 15 minutes.

[meta-codesync]

@JacobSzwejbka has exported this pull request. If you are a Meta employee, you can view the originating Diff in D117081177.

[github-actions]

This PR needs a release notes: label

If your change should be included in the release notes (i.e. would users of this library care about this change?), please use a label starting with release notes:. This helps us keep track and include your important work in the next release notes.

To add a label, you can comment to pytorchbot, for example
@pytorchbot label "release notes: none"

For more information, see
https://github.com/pytorch/pytorch/wiki/PyTorch-AutoLabel-Bot#why-categorize-for-release-notes-and-how-does-it-work.