[llvm] [Xtensa] Fix Code Density test. (PR #121073)

[Fangrui Song via llvm-commits]

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@@ -1,62 +1,52 @@
-# RUN: llvm-mc -triple=xtensa -mattr=+density -disassemble %s | FileCheck --check-prefix=CHECK-DENSITY %s
+# RUN: llvm-mc -triple=xtensa -mattr=+density -disassemble < %s | FileCheck -check-prefixes=CHECK-DENSITY %s
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MaskRay wrote:

For llvm-mc, prefer `%s` to `< %s`

https://github.com/llvm/llvm-project/pull/121073