Enable TensorIndexer with all C++ tests

[naoyam]

Many of the C++ tests use the new indexer already. I have not checked the remaining ones, but I feel I've done enough due diligence.

This PR enables the new indexer with all the C++ tests. Next steps will be enabling it with the Python tests.

[naoyam]

!test

[github-actions]

Review updated until commit 2d73448

Description

• Enable TensorIndexer for all C++ tests by setting IdModel option to "all"

• Add option configuration in NVFuserTest SetUp method

• Ensures consistent TensorIndexer behavior across test suite

Changes walkthrough

	Relevant files
Enhancement	utils.cpp Enable TensorIndexer in test setup                                              tests/cpp/utils.cpp Added EnableOptionsGuard configuration in NVFuserTest::SetUp() Set EnableOption::IdModel to {"all"} to enable TensorIndexer Ensures all C++ tests run with TensorIndexer enabled +1/-0

PR Reviewer Guide

Here are some key observations to aid the review process:

🧪 PR contains tests

⚡ Recommended focus areas for review

Feature Enablement Impact This change globally enables TensorIndexer with "all" option for every C++ test. While the change itself is simple, reviewers should verify: 1) This is the intended behavior for all tests, 2) No existing tests rely on TensorIndexer being disabled by default, 3) The "all" option is appropriate for the test suite, and 4) Any potential test failures or behavioral changes are acceptable. EnableOptionsGuard::getCurOptions().set(EnableOption::IdModel, {"all"});

[naoyam]

!test

[naoyam]

!test

[jjsjann123]

🥳 Yay~~