[clang] [clang-tools-extra] [flang] [lld] [llvm] [mlir] [polly] [test]: fix filecheck annotation typos (PR #91854)

[via cfe-commits]

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@@ -1,6 +1,6 @@
 // RUN: llvm-mc -filetype=asm -triple powerpc-ibm-aix-xcoff %s | FileCheck %s
 
-// CHECK-label:       .csect .text[PR],2
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klensy wrote:

actual: `.csect ..text..[PR],5`

https://github.com/llvm/llvm-project/pull/91854