Fix dump directory for RunTests

build/scripts/build.ps1

@@ -207,10 +207,12 @@ function Test-XUnit() {
         Deploy-VsixViaTool
     }
 
+    $logFilePath = Join-Path $configDir "runtests.log"
     $unitDir = Join-Path $configDir "UnitTests"
     $runTests = Join-Path $configDir "Exes\RunTests\RunTests.exe"
     $xunitDir = Join-Path (Get-PackageDir "xunit.runner.console") "tools"
     $args = "$xunitDir"
+    $args += " -log:$logFilePath"
 
     if ($testDesktop) {
         if ($test32) {

src/Tools/Source/RunTests/Options.cs

@@ -68,7 +68,7 @@ internal class Options
         public string XunitPath { get; set; }
 
         /// <summary>
-        /// When set the log file ffor executing tests will be written to the prescribed location.
+        /// When set the log file for executing tests will be written to the prescribed location.
         /// </summary>
         public string LogFilePath { get; set; }
 

src/Tools/Source/RunTests/Program.cs

@@ -186,12 +186,12 @@ async Task DumpProcess(Process targetProcess, string dumpFilePath)
             }
 
             Console.WriteLine("Roslyn Error: test timeout exceeded, dumping remaining processes");
-
             if (!string.IsNullOrEmpty(options.ProcDumpPath))
             {
                 var dumpDir = options.LogFilePath != null
                     ? Path.GetDirectoryName(options.LogFilePath)
                     : Directory.GetCurrentDirectory();
+                Console.WriteLine($"Dump file location is {dumpDir}");
 
                 var counter = 0;
                 foreach (var proc in ProcessUtil.GetProcessTree(Process.GetCurrentProcess()).OrderBy(x => x.ProcessName))