Merge pull request #3627 from tautschnig/vs-fail

Make Powershell stop on errors [depends-on: #3616, blocks: #2310, #3636, #3637]

Author: tautschnig

buildspec-windows.yml

@@ -64,6 +64,9 @@ phases:
       - |
         $env:Path = "C:\tools\cygwin\bin;$env:Path"
         cmd /c 'call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x64 && bash -c "make -C regression test BUILD_ENV=MSVC" '
+
+      - |
+        $env:Path = "C:\tools\cygwin\bin;$env:Path"
         cmd /c 'call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x64 && bash -c "make -C regression/goto-cl test BUILD_ENV=MSVC" '
 
       - |