Tests in "fold_maskedload_to_load_all_true_dynamic" excercise folders
for:
* vector.maskedload, vector.maskedstore, vector.scatter,
vector.gather, vector.compressstore, vector.expandload.
This patch renames and documents these tests in accordance with:
* https://mlir.llvm.org/getting_started/TestingGuide/
Note: the updated tests are referenced in the Test Formatting Best
Practices section of the MLIR testing guide:
* https://mlir.llvm.org/getting_started/TestingGuide/#test-formatting-best-practices
Keeping them aligned with the guidelines ensures consistency and clarity
across MLIR’s test suite.
fc7f34078c