PCH: Append pch header file to list of forced include files

Fixes: #20088

Source/cmVisualStudio10TargetGenerator.cxx

@@ -2399,6 +2399,9 @@ void cmVisualStudio10TargetGenerator::OutputSourceSpecificFlags(
         clOptions.AppendFlag("DisableSpecificWarnings",
                              "%(DisableSpecificWarnings)");
       }
+      if (clOptions.HasFlag("ForcedIncludeFiles")) {
+        clOptions.AppendFlag("ForcedIncludeFiles", "%(ForcedIncludeFiles)");
+      }
       if (configDependentDefines) {
         clOptions.AddDefines(
           genexInterpreter.Evaluate(configDefines, "COMPILE_DEFINITIONS"));

Tests/RunCMake/VS10Project/VsPrecompileHeaders-check.cmake

@@ -31,7 +31,7 @@ foreach(line IN LISTS tgt_projects_strings)
     set(have_pch_header ON)
   endif()
 
-  if (line MATCHES "<ForcedIncludeFiles.*>.*${pch_header}</ForcedIncludeFiles>")
+  if (line MATCHES "<ForcedIncludeFiles.*>.*${pch_header}.*</ForcedIncludeFiles>")
     set(have_force_pch_header ON)
   endif()