[HLSL] make semantic matching case insensitive#129773

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spall merged 3 commits intollvm:mainfrom

spall:issue-128063

Mar 10, 2025

Commits on Mar 4, 2025

make semantics case insensitive. update tests. add new tests
spall
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Commits on Mar 7, 2025

move where the attribute string is made lowercase so error messages are in capitalization the user wrote
spall
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error in tablegen if an hlslattribute is added that isn't all lower case
spall
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