[CostModel] Add -cost-kind=all costmodel output (#130490) In order to make the different cost model kinds easier to test, and to manage the complexity of all the different variants, this patch introduces a -cost-kind=all option that will print the output of all cost model kinds. It feel especially helpful for tests that already have multiple run lines (with / without +fullfp16 for example). It currently produces the output: ``` Cost Model: Found costs of RThru:1 CodeSize:1 Lat:3 SizeLat:1 for: %F16 = fadd half undef, undef ``` The output is collapsed into a single value if all costs are the same. Invalid costs print "Invalid" via the normal InstructionCost printing. Two test files are updated to show some examples with -intrinsic-cost-strategy=type-based-intrinsic-cost and Invalid costs. Once we have something we are happy with I will try to use this to update more tests, as in b021bdbb3997ef6dd13980dc44f24754f15f3652 but for more variants.
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