[Bugfix] reverted unexpected tvm changes

[LeiWang1999]

as title.

Summary by CodeRabbit

• Refactor

  • Improved detection and handling of synchronization operations for enhanced internal efficiency.

• Tests

  • Strengthened validation of generated kernel code quality.

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📝 Walkthrough

Walkthrough

Two transform modules replace string-based CUDA PDL operation detection with direct operation node checks (pdl_trigger and pdl_sync), and a test adds validation asserting the absence of a specific string in generated kernel output.

Changes

Cohort / File(s)	Summary
PDL Operation Detection Refactoring src/transform/lower_pdl.cc, src/transform/warp_specialized_rewriter.cc	Replace string-argument parsing of extern calls with direct operation node checks; set has_trigger_launch_ and has_grid_sync_ flags directly via tl::pdl_trigger() and tl::pdl_sync() equality comparisons instead of matching CUDA PDL function names from call arguments.
PDL Sync Test Assertion testing/python/language/test_tilelang_language_pdl.py	Add assertion verifying generated CUDA kernel source does not contain __restrict__ string.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Poem

🐰 From strings to ops, the PDL now flows clear,
No more parsing names—the trigger's right here!
PDL sync checks swift, without the fuss,
Refactored with grace, more elegant thus! ✨

✨ Finishing touches

• 📝 Generate docstrings

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📜 Recent review details

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 409677d and 4b396f3.

📒 Files selected for processing (3)

• src/transform/lower_pdl.cc
• src/transform/warp_specialized_rewriter.cc
• testing/python/language/test_tilelang_language_pdl.py

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