ecea2b542b
This was broken and never tested. Not only this could crash for stack-use-after-scope, but it also would have printed something like: ``` value <block argument> of type 'memref<7x8xf64, #gpu.address_space<workgroup>>' at index: 12 ``` insted of the SSA value. It turns out the gpu.func already have a very similar helper that we can reuse here. Fixes #161394