Rik Huijzer c836b4ad6c [mlir] Verify TestBuiltinAttributeInterfaces eltype (#69878) ...

Fixes #61871 and fixes #60581.

This PR fixes two small things. First and foremost, it throws a clear
error in the `-test-elements-attr-interface` when those tests are called
on elements which are not an integer. I've looked through the
introduction of the attribute interface
(https://reviews.llvm.org/D109190) and later commits and see no evidence
that the interface (`attr.tryGetValues<T>()`) is expected to handle
mismatching types.

For example, the case which is given in #61871 is:
```mlir
arith.constant sparse<[[0, 0, 5]],  -2.0> : vector<1x1x10xf16>
```
So, a sparse vector containing `f16` elements. This will crash at
various locations when called in the test because the test introduces
integer types (`int64_t`, `uint64_t`, `APInt`, `IntegerAttr`), but as I
said in the previous paragraph: I see no reason to believe that the
implementation of the interface is wrong here. The interface just
assumes that clients don't do things like `attr.tryGetValues<APInt>()`
on a floating point `attr`.

Also I've added a test for the implementation of this interface by the
`sparse` dialect. There were no problems there. Still, probably good to
increase code coverage on that one.

2023-10-23 17:02:52 +02:00

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