[wasm][debugger]Trying to improve CI performance for debugger-tests (dotnet#89525)

* Trying to improve CI performance for debugger-tests to avoid the crashes and the timeouts.

* Fixing one test and setting just my code TRUE as default.

* Fix compilation

* Fixing tests

* Fixing test behavior and adding comments suggested by @radical

Author: thaystg

src/mono/wasm/debugger/BrowserDebugProxy/MonoProxy.cs

@@ -42,6 +42,7 @@ public MonoProxy(ILogger logger, int runtimeId = 0, string loggerId = "", ProxyO
             RuntimeId = runtimeId;
             _options = options;
             _defaultPauseOnExceptions = PauseOnExceptionsKind.Unset;
+            JustMyCode = options?.JustMyCode ?? false;
         }
 
         internal virtual Task<Result> SendMonoCommand(SessionId id, MonoCommands cmd, CancellationToken token) => SendCommand(id, "Runtime.evaluate", JObject.FromObject(cmd), token);
@@ -1277,7 +1278,11 @@ protected async Task<bool> Step(MessageId msgId, StepKind kind, CancellationToke
                 return false;
 
             if (context.CallStack.Count <= 1 && kind == StepKind.Out)
-                return false;
+            {
+                Frame scope = context.CallStack.FirstOrDefault<Frame>();
+                if (scope is null || !(await context.SdbAgent.IsAsyncMethod(scope.Method.DebugId, token)))
+                    return false;
+            }
             var ret = await TryStepOnManagedCodeAndStepOutIfNotPossible(msgId, context, kind, token);
             if (ret)
                 SendResponse(msgId, Result.Ok(new JObject()), token);

src/mono/wasm/debugger/BrowserDebugProxy/MonoSDBHelper.cs

@@ -911,7 +911,7 @@ public async Task<AssemblyInfo> GetAssemblyInfo(int assemblyId, CancellationToke
             }
             else
             {
-                if (asm.asmMetadataReader is null && proxy.JustMyCode) //load on demand
+                if (asm.asmMetadataReader is null) //load on demand
                 {
                     var assemblyAndPdbData = await GetDataFromAssemblyAndPdbAsync(asm.Name, true, token);
                     if (assemblyAndPdbData is not null)

src/mono/wasm/debugger/BrowserDebugProxy/ProxyOptions.cs

@@ -29,4 +29,5 @@ public int DevToolsDebugPort
     public string? LogPath { get; set; }
     public bool RunningForBlazor { get; set; }
     public bool IsFirefoxDebugging { get; set; }
+    public bool JustMyCode { get; set; }
 }

src/mono/wasm/debugger/DebuggerTestSuite/ChromeProvider.cs

@@ -87,7 +87,9 @@ public async Task StartBrowserAndProxyAsync(HttpContext context,
 
         _logger.LogInformation($"{messagePrefix} launching proxy for {con_str}");
 
-        _debuggerProxy = new DebuggerProxy(loggerFactory, loggerId: Id);
+        var options = new ProxyOptions();
+        options.JustMyCode = true;
+        _debuggerProxy = new DebuggerProxy(loggerFactory, loggerId: Id, options: options);
         TestHarnessProxy.RegisterNewProxy(Id, _debuggerProxy);
         var browserUri = new Uri(con_str);
         WebSocket? ideSocket = await context.WebSockets.AcceptWebSocketAsync().ConfigureAwait(false);

src/mono/wasm/debugger/DebuggerTestSuite/MiscTests.cs

@@ -874,7 +874,7 @@ public async Task InspectTaskAtLocals() => await CheckInspectLocalsAtBreakpointS
                 await CheckProps(t_props, new
                     {
                         Status = TGetter("Status")
-                    }, "t_props", num_fields: 58);
+                    }, "t_props", num_fields: 33);
             });
 
 
@@ -938,6 +938,12 @@ await EvaluateAndCheck(
         [Fact]
         public async Task InspectLocalsUsingClassFromLibraryUsingDebugTypeFull()
         {
+            /*DebugType.Full generates symbols in a format that we don't understand (vs portable). If JMC=true (default for tests) then we will not load the assemblies
+            that don't have debug symbols. With JMC=false, the assembly will be loaded, even with unusable symbols, and the proxy will use the assembly metadata
+            instead.
+
+            This test specifically tries to inspect an object defined in the external library, so we need JMC=false here.*/
+            await SetJustMyCode(false);
             var expression = $"{{ invoke_static_method('[debugger-test] DebugTypeFull:CallToEvaluateLocal'); }}";
 
             await EvaluateAndCheck(
@@ -1002,6 +1008,8 @@ public async Task SetBreakpointInProjectWithColonInSourceName()
             1160)]
         public async Task InspectPropertiesOfObjectFromExternalLibrary(string className, int line)
         {
+            //Setting JustMyCode = false because we are trying to inspect an object from an external library, and this is only allowed when JMC is disabled
+            await SetJustMyCode(false);
             var expression = $"{{ invoke_static_method('[debugger-test] {className}:Run'); }}";
 
             await EvaluateAndCheck(

src/mono/wasm/debugger/DebuggerTestSuite/SteppingTests.cs

@@ -1045,6 +1045,8 @@ await EvaluateAndCheck(
         [InlineData(false)]
         public async Task SteppingIntoLibrarySymbolsLoadedFromSymbolServer(bool justMyCode)
         {
+            //The test behavior is expecting to start with JustMyCode disabled
+            await SetJustMyCode(false);
             string cachePath = _env.CreateTempDirectory("symbols-cache");
             _testOutput.WriteLine($"** Using cache path: {cachePath}");
             var searchPaths = new JArray

src/mono/wasm/debugger/tests/debugger-test/debugger-test.csproj

@@ -52,8 +52,13 @@
   <Target Name="PrepareForWasmBuildApp" DependsOnTargets="Build">
     <Error Condition="!Exists('$(MicrosoftNetCoreAppRuntimePackRidDir)native')"
            Text="Cannot find %24(MicrosoftNetCoreAppRuntimePackRidDir)=$(MicrosoftNetCoreAppRuntimePackRidDir)native. Make sure to set the runtime configuration with %24(RuntimeConfiguration). Current value: $(RuntimeConfiguration)" />
-    <!-- Remove pdb from System.Private.CoreLib to have the same scenario that we have in a Blazor/Wasm user app -->
-    <Delete Files="$(MicrosoftNetCoreAppRuntimePackRidDir)native/System.Private.CoreLib.pdb" />   
+    <ItemGroup>
+      <!-- Remove pdb from System.Private.CoreLib to have the same scenario that we have in a Blazor/Wasm user app -->
+      <FilesToDelete Include="$(MicrosoftNetCoreAppRuntimePackRidDir)native/System.Private.CoreLib.pdb"/>
+      <!-- Remove pdb from all libraries in CI to improve CI performance and have the same scenario that we have in a Blazor/Wasm user app -->
+      <FilesToDelete Condition="'$(ContinuousIntegrationBuild)' == 'true'" Include="$(MicrosoftNetCoreAppRuntimePackRidDir)lib/$(AspNetCoreAppCurrent)/*.pdb" Exclude="$(MicrosoftNetCoreAppRuntimePackRidDir)lib/$(AspNetCoreAppCurrent)/System.Console.pdb"/>
+    </ItemGroup>
+    <Delete Files="@(FilesToDelete)"/>
     <PropertyGroup>
       <EnableDefaultWasmAssembliesToBundle>false</EnableDefaultWasmAssembliesToBundle>
       <WasmAppDir>$(AppDir)</WasmAppDir>