Fix test failures

Author: sywhang

src/TraceEvent/EventPipe/EventPipeEventSource.cs

@@ -521,6 +521,11 @@ private DynamicTraceEventData.PayloadFetchClassInfo CheckForWellKnownEventFields
             if (eventMetaDataHeader.ProviderName == "Microsoft-Diagnostics-DiagnosticSource")
             {
                 string eventName = eventMetaDataHeader.EventName;
+                if (eventMetaDataHeader.Opcode == (int)TraceEventOpcode.Start || eventMetaDataHeader.Opcode == (int)TraceEventOpcode.Stop)
+                {
+                    eventName = eventName + ((TraceEventOpcode)eventMetaDataHeader.Opcode).ToString();
+                }
+
                 if (eventName == "Event" ||
                    eventName == "Activity1Start" ||
                    eventName == "Activity1Stop" ||

src/TraceEvent/TraceEvent.Tests/inputs/eventpipe-dotnetcore2.0-linux-objver1.netperf.baseline.txt

@@ -45,8 +45,8 @@ Microsoft-Windows-DotNETRuntimeRundown/Loader/DomainModuleDCStop, 148, <Event MS
 Microsoft-Windows-DotNETRuntimeRundown/Loader/ModuleDCStop, 149, <Event MSec= "28101.3208" PID=   "0" PName=        "" TID="166386" EventName="Loader/ModuleDCStop" ModuleID="0x00007FB2454D3C18" AssemblyID="0x02391490" ModuleFlags="Manifest" ModuleILPath="/home/nate/DotNetCoreProfiler/samples/mvc/bin/Debug/netcoreapp2.0/mvc.dll" ModuleNativePath="" ManagedPdbSignature="439d7f24-9f20-4b61-a0ae-50fb842e9c20" ManagedPdbAge="1" ManagedPdbBuildPath="/home/nate/DotNetCoreProfiler/samples/mvc/obj/Debug/netcoreapp2.0/mvc.pdb"/>
 Microsoft-Windows-DotNETRuntimeRundown/Method/DCStopComplete, 1, <Event MSec= "30686.3881" PID=   "0" PName=        "" TID="166386" EventName="Method/DCStopComplete" ClrInstanceID="0"/>
 Microsoft-Windows-DotNETRuntimeRundown/Method/DCStopInit, 1, <Event MSec= "27765.9477" PID=   "0" PName=        "" TID="166386" EventName="Method/DCStopInit" ClrInstanceID="0"/>
-Provider(f150d8fb-960c-5e38-a69d-49bae6f97289)/RequestStart/Start, 51, <Event MSec=  "6055.0726" PID=   "0" PName=        "" TID="166386" ActivityID="00000011000000000000000060109f59" EventName="RequestStart/Start" ProviderName="Provider(f150d8fb-960c-5e38-a69d-49bae6f97289)" url="/"/>
-Provider(f150d8fb-960c-5e38-a69d-49bae6f97289)/RequestStop/Stop, 51, <Event MSec=    "81.6991" PID=   "0" PName=        "" TID="166381" EventName="RequestStop/Stop" ProviderName="Provider(f150d8fb-960c-5e38-a69d-49bae6f97289)"/>
+Provider(f150d8fb-960c-5e38-a69d-49bae6f97289)/Request/Start, 51, <Event MSec=  "6055.0726" PID=   "0" PName=        "" TID="166386" ActivityID="00000011000000000000000060109f59" EventName="Request/Start" ProviderName="Provider(f150d8fb-960c-5e38-a69d-49bae6f97289)" url="/"/>
+Provider(f150d8fb-960c-5e38-a69d-49bae6f97289)/Request/Stop, 51, <Event MSec=    "81.6991" PID=   "0" PName=        "" TID="166381" EventName="Request/Stop" ProviderName="Provider(f150d8fb-960c-5e38-a69d-49bae6f97289)"/>
 System.Threading.Tasks.TplEventSource/AwaitTaskContinuationScheduled/Send, 7, <Event MSec=    "87.0745" PID=   "0" PName=        "" TID="166381" EventName="AwaitTaskContinuationScheduled/Send" OriginatingTaskSchedulerID="1" OriginatingTaskID="3" ContinuationId="4"/>
 System.Threading.Tasks.TplEventSource/TaskExecute/Start, 198, <Event MSec=  "6056.3766" PID=   "0" PName=        "" TID="166383" EventName="TaskExecute/Start" OriginatingTaskSchedulerID="1" OriginatingTaskID="0" TaskID="17"/>
 System.Threading.Tasks.TplEventSource/TaskExecute/Stop, 197, <Event MSec=  "6056.4608" PID=   "0" PName=        "" TID="166383" EventName="TaskExecute/Stop" OriginatingTaskSchedulerID="1" OriginatingTaskID="0" TaskID="17" IsExceptional="False"/>

src/TraceEvent/TraceEvent.Tests/inputs/eventpipe-dotnetcore2.0-linux-objver2.netperf.baseline.txt

@@ -28,5 +28,5 @@ System.Threading.Tasks.TplEventSource/TaskScheduled/Send, 82, <Event MSec=  "447
 System.Threading.Tasks.TplEventSource/TaskWait/Send, 106, <Event MSec=  "4446.0311" PID=   "0" PName=        "" TID="12701" EventName="TaskWait/Send" OriginatingTaskSchedulerID="1" OriginatingTaskID="0" TaskID="3" Behavior="Asynchronous" ContinueWithTaskID="0"/>
 System.Threading.Tasks.TplEventSource/TaskWait/Stop, 96, <Event MSec=  "4534.8792" PID=   "0" PName=        "" TID="12824" EventName="TaskWait/Stop" OriginatingTaskSchedulerID="1" OriginatingTaskID="0" TaskID="13"/>
 System.Threading.Tasks.TplEventSource/TaskWaitContinuationComplete, 96, <Event MSec=  "4535.1539" PID=   "0" PName=        "" TID="12824" EventName="TaskWaitContinuationComplete" TaskID="17"/>
-TestEventSource/RequestStart/Start, 28, <Event MSec=  "4479.3677" PID=   "0" PName=        "" TID="12815" ActivityID="0000001100000000000000003da89d59" EventName="RequestStart/Start" ProviderName="TestEventSource" url="/"/>
-TestEventSource/RequestStop/Stop, 28, <Event MSec=   "159.4038" PID=   "0" PName=        "" TID="12691" EventName="RequestStop/Stop" ProviderName="TestEventSource"/>
+TestEventSource/Request/Start, 28, <Event MSec=  "4479.3677" PID=   "0" PName=        "" TID="12815" ActivityID="0000001100000000000000003da89d59" EventName="Request/Start" ProviderName="TestEventSource" url="/"/>
+TestEventSource/Request/Stop, 28, <Event MSec=   "159.4038" PID=   "0" PName=        "" TID="12691" EventName="Request/Stop" ProviderName="TestEventSource"/>