Report unhandled async exceptions

src/coreclr/vm/excep.cpp

@@ -3223,21 +3223,6 @@ BOOL IsExceptionOfType(RuntimeExceptionKind reKind, OBJECTREF *pThrowable)
     return CoreLibBinder::IsException(pThrowableMT, reKind);
 }
 
-BOOL IsAsyncThreadException(OBJECTREF *pThrowable) {
-    STATIC_CONTRACT_NOTHROW;
-    STATIC_CONTRACT_GC_NOTRIGGER;
-    STATIC_CONTRACT_MODE_COOPERATIVE;
-    STATIC_CONTRACT_FORBID_FAULT;
-
-    if (  (GetThreadNULLOk() && GetThread()->IsRudeAbort() && GetThread()->IsRudeAbortInitiated())
-        ||IsExceptionOfType(kThreadAbortException, pThrowable)
-        ||IsExceptionOfType(kThreadInterruptedException, pThrowable)) {
-        return TRUE;
-    } else {
-        return FALSE;
-    }
-}
-
 BOOL IsUncatchable(OBJECTREF *pThrowable)
 {
     CONTRACTL {
@@ -4960,7 +4945,7 @@ DefaultCatchHandler(PEXCEPTION_POINTERS pExceptionPointers,
                     IsOutOfMemory)
                 {
                     // We have to be very careful.  If we walk off the end of the stack, the process will just
-                    // die. e.g. IsAsyncThreadException() and Exception.ToString both consume too much stack -- and can't
+                    // die. e.g. Exception.ToString both consume too much stack -- and can't
                     // be called here.
                     dump = FALSE;
 
@@ -4973,12 +4958,6 @@ DefaultCatchHandler(PEXCEPTION_POINTERS pExceptionPointers,
                         PrintToStdErrA("Stack overflow.\n");
                     }
                 }
-                else if (IsAsyncThreadException(&throwable))
-                {
-                    // We don't print anything on async exceptions, like ThreadAbort.
-                    dump = FALSE;
-                    INDEBUG(suppressSelectiveBreak=TRUE);
-                }
 
                 // Finally, should we print the message?
                 if (dump)

src/coreclr/vm/excep.h

@@ -125,7 +125,6 @@ DWORD ComputeEnclosingHandlerNestingLevel(IJitManager *pIJM, const METHODTOKEN&
 BOOL IsException(MethodTable *pMT);
 BOOL IsExceptionOfType(RuntimeExceptionKind reKind, OBJECTREF *pThrowable);
 BOOL IsExceptionOfType(RuntimeExceptionKind reKind, Exception *pException);
-BOOL IsAsyncThreadException(OBJECTREF *pThrowable);
 BOOL IsUncatchable(OBJECTREF *pThrowable);
 VOID FixupOnRethrow(Thread *pCurThread, EXCEPTION_POINTERS *pExceptionPointers);
 BOOL UpdateCurrentThrowable(PEXCEPTION_RECORD pExceptionRecord);

src/tests/baseservices/exceptions/unhandled/unhandled.cs

@@ -48,11 +48,15 @@ static void Main(string[] args)
             {
                 throw new Exception("Test");
             }
-            if (args[0] == "mainhardware")
+            else if (args[0] == "mainhardware")
             {
                 string s = null;
                 Console.WriteLine(s.Length); // This will cause a NullReferenceException
             }
+            else if (args[0] == "mainthreadinterrupted")
+            {
+                throw new ThreadInterruptedException("Test");
+            }
             else if (args[0] == "foreign")
             {
                 InvokeCallbackOnNewThread(&ThrowException);
@@ -79,6 +83,12 @@ static void Main(string[] args)
                 t.Start();
                 t.Join();
             }
+            else if (args[0] == "secondarythreadinterrupted")
+            {
+                Thread t = new Thread(() => throw new ThreadInterruptedException("Test"));
+                t.Start();
+                t.Join();
+            }
         }
     }
 }

src/tests/baseservices/exceptions/unhandled/unhandledTester.cs

@@ -109,6 +109,13 @@ static void RunExternalProcess(string unhandledType, string assembly)
                         throw new Exception("Missing Unhandled exception header");
                     }
                 }
+                if (unhandledType == "mainthreadinterrupted" || unhandledType == "secondarythreadinterrupted")
+                {
+                    if (lines[0] != "Unhandled exception. System.Threading.ThreadInterruptedException: Test")
+                    {
+                        throw new Exception("Missing Unhandled exception header");
+                    }
+                }
                 else if (unhandledType == "foreign")
                 {
                     if (!lines[0].StartsWith("Unhandled exception. System.DllNotFoundException:") &&
@@ -149,8 +156,10 @@ public static void TestEntryPoint()
         {
             RunExternalProcess("main", "unhandled.dll");
             RunExternalProcess("mainhardware", "unhandled.dll");
+            RunExternalProcess("mainthreadinterrupted", "unhandled.dll");
             RunExternalProcess("secondary", "unhandled.dll");
             RunExternalProcess("secondaryhardware", "unhandled.dll");
+            RunExternalProcess("secondarythreadinterrupted", "unhandled.dll");
             RunExternalProcess("foreign", "unhandled.dll");
             File.Delete(Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "dependencytodelete.dll"));
             RunExternalProcess("missingdependency", "unhandledmissingdependency.dll");