Fixed a few issues around bootstrapping

- Work aronud coreconsole issue in the bootstrap.cmd
- Use msbuild 14 roslyn csc until we have it
- Remove quoting args when building project refs, it wasn't working
- Fixed logic that launched exe's directly

scripts/bootstrap.cmd

@@ -14,14 +14,6 @@ set STAGE1_DIR=%REPOROOT%\artifacts\stage1
 set STAGE2_DIR=%REPOROOT%\artifacts\stage2
 set DOTNET_PUBLISH=%REPOROOT%\scripts\dnxhost\dotnet-publish.cmd
 
-REM TEMPORARY!
-if not defined DOTNET_CORE_CONSOLE_PATH (
-    if exist "%REPOROOT%\..\coreclr" (
-        set DOTNET_CORE_CONSOLE_PATH=%REPOROOT%\..\coreclr\bin\Product\Windows_NT.x64.Debug\CoreConsole.exe
-    )
-)
-if not exist "%DOTNET_CORE_CONSOLE_PATH%" goto missing_coreconsole
-
 where dnvm >nul 2>nul
 if %errorlevel% == 0 goto have_dnvm
 
@@ -69,6 +61,13 @@ set PATH=%STAGE1_DIR%;%PATH%
 
 if exist %STAGE2_DIR% rd /s /q %STAGE2_DIR%
 
+REM This works around the coreconsole bug where the path to the exe can't be found
+pushd
+cd %STAGE1_DIR%
+
+REM Work around for not having the latest CSC yet
+set PATH=%ProgramFiles(x86)%\MSBuild\14.0\Bin;%PATH%
+
 echo Building stage2 dotnet.exe ...
 dotnet publish --framework dnxcore50 --runtime win7-x64 --output "%STAGE2_DIR%" "%REPOROOT%\src\Microsoft.DotNet.Cli"
 if errorlevel 1 goto fail
@@ -82,6 +81,7 @@ dotnet publish --framework dnxcore50 --runtime win7-x64 --output "%STAGE2_DIR%"
 if errorlevel 1 goto fail
 
 echo Bootstrapped dotnet to %STAGE2_DIR%
+popd
 
 goto end
 
@@ -89,12 +89,4 @@ goto end
 echo Bootstrapping failed...
 exit /B 1
 
-:missing_coreconsole
-echo Bootstrapping temporarily requires a patched CoreConsole to workaround
-echo this issue: https://github.com/dotnet/coreclr/issues/1771
-echo Either clone dotnet/coreclr to a sibling directory of this repo called
-echo "coreclr" and build it, or put the path to the patched version of 
-echo CoreConsole in the DOTNET_CORE_CONSOLE_PATH environment variable
-exit /B 1
-
 :end

scripts/dnxhost/dotnet-compile.cmd

@@ -3,7 +3,7 @@ SETLOCAL
 SET ERRORLEVEL=
 
 REM makes testing easier for now
-set PATH=%PATH%;%~dp0
+set PATH=%ProgramFiles(x86)%\MSBuild\14.0\Bin;%PATH%;%~dp0
 
 dnx %DOTNET_OPTIONS% -p %~dp0..\..\src\Microsoft.DotNet.Tools.Compiler run %*
 

src/Microsoft.DotNet.Cli.Utils/Command.cs

@@ -77,9 +77,9 @@ namespace Microsoft.DotNet.Cli.Utils
             if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
             {
                 var extension = Path.GetExtension(executable);
-                if (!string.IsNullOrEmpty(executable))
+                if (!string.IsNullOrEmpty(extension))
                 {
-                    return string.Equals(executable, ".exe", StringComparison.Ordinal);
+                    return !string.Equals(extension, ".exe", StringComparison.Ordinal);
                 }
                 else if (executable.Contains(Path.DirectorySeparatorChar))
                 {

src/Microsoft.DotNet.Tools.Compiler/Program.cs

@@ -82,7 +82,7 @@ namespace Microsoft.DotNet.Tools.Compiler
                 var projectDependency = dependency.Library as ProjectDescription;
                 if (projectDependency != null && !string.Equals(projectDependency.Identity.Name, context.RootProject.Identity.Name, StringComparison.Ordinal))
                 {
-                    var compileResult = Command.Create("dotnet-compile", $"--framework \"{projectDependency.Framework}\" --configuration \"{configuration}\" {projectDependency.Project.ProjectDirectory}")
+                    var compileResult = Command.Create("dotnet-compile", $"--framework {projectDependency.Framework} --configuration {configuration} {projectDependency.Project.ProjectDirectory}")
                         .ForwardStdOut()
                         .ForwardStdErr()
                         .RunAsync()