Tell coverlet to respect the [DoesNotReturn] attribute for coverage purposes (#84396)

Author: stephentoub

eng/testing/coverage.targets

@@ -47,7 +47,7 @@
       <CoverageReportInputPath Condition="'$(CoverageReportInputPath)' == ''">$(CoverageOutputPath)</CoverageReportInputPath>
       <CoverageReportDir Condition="'$(CoverageReportDir)' == ''">$([MSBuild]::NormalizeDirectory('$(OutDir)', 'report'))</CoverageReportDir>
 
-      <RunScriptCommand>"$(DotNetTool)" coverlet "$(TargetFileName)" --target "$(RunScriptHost)" --targetargs "$(RunScriptCommand.Replace('&quot;$(RunScriptHost)&quot;', ''))" --format "opencover" --output "$(CoverageOutputPath)" --verbosity "normal" --use-source-link</RunScriptCommand>
+      <RunScriptCommand>"$(DotNetTool)" coverlet "$(TargetFileName)" --target "$(RunScriptHost)" --targetargs "$(RunScriptCommand.Replace('&quot;$(RunScriptHost)&quot;', ''))" --format "opencover" --output "$(CoverageOutputPath)" --verbosity "normal" --use-source-link --does-not-return-attribute DoesNotReturn</RunScriptCommand>
       <RunScriptCommand Condition="'@(CoverageExcludeByFile)' != ''">$(RunScriptCommand) --exclude-by-file @(CoverageExcludeByFile -> '"%(Identity)"', ' --exclude-by-file ')</RunScriptCommand>
       <RunScriptCommand Condition="'@(CoverageIncludeDirectory)' != ''">$(RunScriptCommand) --include-directory @(CoverageIncludeDirectory -> '"$(RunScriptHostDir)%(Identity)"', ' --include-directory ')</RunScriptCommand>
       <RunScriptCommand Condition="'$(CoverageIncludeTests)' == 'true'">$(RunScriptCommand) --include-test-assembly</RunScriptCommand>