Add Batch syntax test

tests/syntax-tests/source/Batch/build.bat

@@ -0,0 +1,59 @@
+@echo off
+
+
+:: Change to your LLVM installation
+set "LLVMPath=C:\Program Files\LLVM"
+:: Change to your Visual Studio 2017 installation
+set "VSPath=C:\Program Files (x86)\Microsoft Visual Studio\2017\Community"
+set "VSVersion=14.10.25017"
+:: Change to your Windows Kit version & installation
+set "WinSDKVersion=10.0.15063.0"
+set "WinSDKPath=C:\Program Files (x86)\Windows Kits\10"
+:: Change this to your resulting exe
+set "OUTPUT=test.exe"
+
+
+:: Setup
+set "VSBasePath=%VSPath%\VC\Tools\MSVC\%VSVersion%"
+set "PATH=%PATH%;%LLVMPath%\bin;%VSBasePath%\bin\HostX64\x64"
+
+:: Compiler Flags
+set CFLAGS= ^
+ -std=c++14 -Wall -Wextra
+
+set CPPFLAGS= ^
+  -I "%VSBasePath%\include" ^
+  -I "%WinSDKPath%\Include\%WinSDKVersion%\shared" ^
+  -I "%WinSDKPath%\Include\%WinSDKVersion%\ucrt" ^
+  -I "%WinSDKPath%\Include\%WinSDKVersion%\um"
+
+
+:: Linker Libs
+set LDFLAGS= ^
+ -machine:x64 ^
+ -nodefaultlib ^
+ -subsystem:console
+
+set LDLIBS= ^
+ -libpath:"%VSBasePath%\lib\x64" ^
+ -libpath:"%WinSDKPath%\Lib\%WinSDKVersion%\ucrt\x64" ^
+ -libpath:"%WinSDKPath%\Lib\%WinSDKVersion%\um\x64" ^
+ libucrt.lib libvcruntime.lib libcmt.lib libcpmt.lib ^
+ legacy_stdio_definitions.lib oldnames.lib ^
+ legacy_stdio_wide_specifiers.lib ^
+ kernel32.lib User32.lib
+
+
+:: Compiling
+@echo on
+@for %%f in (*.cc) do (
+    clang++.exe "%%~f" -o "%%~nf.o" -c %CFLAGS%
+)
+
+:: Linking
+@set "LINK_FILES="
+@for %%f in (*.o) do (
+    @set "LINK_FILES=%LINK_FILES% %%~f"
+)
+
+lld-link.exe %LINK_FILES% -out:"%OUTPUT%" %LDFLAGS% %LDLIBS%