[llvm] [llvm-exegesis] Use explicit error classes for different snippet crashes (PR #74210)

[Clement Courbet via llvm-commits]

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@@ -575,7 +570,7 @@ Expected<Benchmark> BenchmarkRunner::runConfiguration(
   auto NewMeasurements = runMeasurements(**Executor);
 
   if (Error E = NewMeasurements.takeError()) {
-    if (!E.isA<SnippetCrash>())
+    if (!E.isA<SnippetExecutionFailure>())
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legrosbuffle wrote:

You should probably rebase.

https://github.com/llvm/llvm-project/pull/74210