[llvm] [libsycl] Generic code cleanup (PR #224330)

[Alexey Bader via llvm-commits]

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@@ -12,8 +12,8 @@
 ///
 //===----------------------------------------------------------------------===//
 
-#ifndef _LIBSYCL___SPIRV_SPIRV_VARS
-#define _LIBSYCL___SPIRV_SPIRV_VARS
+#ifndef _LIBSYCL___SPIRV_SPIRV_VARS_HPP
+#define _LIBSYCL___SPIRV_SPIRV_VARS_HPP
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bader wrote:

I suggest dropping "spirv_" suffix for all files in `__spirv` directory. It seems unnecessary.

https://github.com/llvm/llvm-project/pull/224330