llvm-project

e1d60f7f - [mlir][vector][nfc] Group all tests for `foldFromElementsToConstant` (#158578)

[mlir][vector][nfc] Group all tests for `foldFromElementsToConstant` (#158578) This patch merely moves + renames tests for Vector's `foldFromElementsToConstant` - to better align with our testing guides: * https://mlir.llvm.org/getting_started/TestingGuide/ Changes: 1. Make sure that all tests for `foldFromElementsToConstant` are grouped together. 2. Use `@negative_` as a prefix for negative tests (*). 3. Use captigal letters for LIT variable names (*).