Add --stackref-debug flag to build.bat

Author: sergey-miryanov

PCbuild/build.bat

@@ -106,6 +106,7 @@ if "%~1"=="-E" (set IncludeExternals=false) & shift & goto CheckOpts
 if "%~1"=="--no-ctypes" (set IncludeCTypes=false) & shift & goto CheckOpts
 if "%~1"=="--no-ssl" (set IncludeSSL=false) & shift & goto CheckOpts
 if "%~1"=="--no-tkinter" (set IncludeTkinter=false) & shift & goto CheckOpts
+if "%~1"=="--stackref-debug" (set StackRefDebug=true) & shift & goto CheckOpts
 
 if "%IncludeExternals%"=="" set IncludeExternals=true
 if "%IncludeCTypes%"=="" set IncludeCTypes=true
@@ -202,6 +203,7 @@ echo on
  /p:PyStats=%PyStats%^
  /p:UseTailCallInterp=%UseTailCallInterp%^
  /p:DisableRemoteDebug=%DisableRemoteDebug%^
+ /p:StackRefDebug=%StackRefDebug%^
  %1 %2 %3 %4 %5 %6 %7 %8 %9
 
 @echo off

PCbuild/pythoncore.vcxproj

@@ -110,6 +110,7 @@
       <PreprocessorDefinitions Condition="'$(UseTailCallInterp)' == 'true'">_Py_TAIL_CALL_INTERP=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(WITH_COMPUTED_GOTOS)' != ''">HAVE_COMPUTED_GOTOS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(DisableRemoteDebug)' != 'true'">Py_REMOTE_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(StackRefDebug)' == 'true'">Py_STACKREF_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <AdditionalDependencies>version.lib;ws2_32.lib;pathcch.lib;bcrypt.lib;%(AdditionalDependencies)</AdditionalDependencies>