[wasm][AOT][helix] Debug emsdk

eng/testing/tests.mobile.targets

@@ -14,7 +14,7 @@
     <ShouldBuildWasmLocally
       Condition="'$(ContinuousIntegrationBuild)' != 'true' or ('$(RunAOTCompilation)' != 'true' and '$(ContinuousIntegrationBuild)' == 'true')">true</ShouldBuildWasmLocally>
 
-    <AOTScriptCommand Condition="'$(ShouldBuildWasmLocally)' != 'true'">dotnet msbuild publish/aot-build.proj &amp;&amp; </AOTScriptCommand>
+    <AOTScriptCommand Condition="'$(ShouldBuildWasmLocally)' != 'true'">ls -la $HELIX_CORRELATION_PAYLOAD &amp;&amp; ls -la $HELIX_CORRELATION_PAYLOAD/emscripten &amp;&amp; ls -al $HELIX_CORRELATION_PAYLOAD/emscripten/emsdk &amp;&amp; dotnet msbuild publish/aot-build.proj &amp;&amp; </AOTScriptCommand>
 
     <!-- We need to set this in order to get extensibility on xunit category traits and other arguments we pass down to xunit via MSBuild properties -->
     <RunScriptCommand Condition="'$(IsFunctionalTest)' != 'true' and '$(Scenario)' != 'BuildWasmApps'">$(AOTScriptCommand)$HARNESS_RUNNER wasm $XHARNESS_COMMAND  --app=. --engine=$(JSEngine) $(JSEngineArgs) --js-file=runtime.js --output-directory=$XHARNESS_OUT --  $(RunTestsJSArguments) --run WasmTestRunner.dll $(AssemblyName).dll</RunScriptCommand>

src/libraries/tests.proj

@@ -210,6 +210,9 @@
 
     <!-- MarkTypeForDynamicallyAccessedMembers stack overflow https://github.com/mono/linker/issues/1881 -->
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.ComponentModel.Annotations/tests/System.ComponentModel.Annotations.Tests.csproj" />
+
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)*\tests\**\*.Tests.csproj" />
+    <ProjectExclusions Remove="$(MSBuildThisFileDirectory)System.Buffers/tests/System.Buffers.Tests.csproj" />
   </ItemGroup>
 
   <ItemGroup>