[clang] [HLSL] Add RWStructuredBuffer definition to HLSLExternalSemaSource (PR #113477)

[Helena Kotas via cfe-commits]

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@@ -17,7 +17,7 @@
 // EMPTY-NEXT: FinalAttr 0x{{[0-9A-Fa-f]+}} <<invalid sloc>> Implicit final
 
 // There should be no more occurrances of StructuredBuffer
-// EMPTY-NOT: StructuredBuffer
+// EMPTY-NOT: {{/s}}StructuredBuffer
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hekota wrote:

This ensures that we match StructuredBuffer with a space in front of it. Avoids match with RWStructuredBuffer.

https://github.com/llvm/llvm-project/pull/113477