[Lldb-commits] [lldb] [lldb] Fix trace test assertions after error-message style change (PR #212372)

[Yao Qi via lldb-commits]

https://github.com/qiyao approved this pull request.

LGTM, matches the new error-message style from #156774.

Some tests, like `TestTraceDumpInfo.testErrorMessages`, don't require intel pt.  I get the same error message on my Mac,
```
(lldb) thread trace dump info
error: process is not being traced
```
so don't have to skip this test if the host doesn't have intel pt feature.

https://github.com/llvm/llvm-project/pull/212372