CMAKE_ROLE: Fix value in --build for Visual Studio generators

Fixes: #18990

Source/cmakemain.cxx

@@ -498,7 +498,7 @@ static int do_build(int ac, char const* const* av)
     return 1;
   }
 
-  cmake cm(cmake::RoleInternal, cmState::Unknown);
+  cmake cm(cmake::RoleInternal, cmState::Project);
   cmSystemTools::SetMessageCallback([&cm](const char* msg, const char* title) {
     cmakemainMessageCallback(msg, title, &cm);
   });

Tests/RunCMake/CMakeRoleGlobalProperty/Project.cmake

@@ -1,4 +1,8 @@
 get_property(role GLOBAL PROPERTY CMAKE_ROLE)
+
+file(WRITE "${CMAKE_BINARY_DIR}/test.cmake" "# a")
+include("${CMAKE_BINARY_DIR}/test.cmake")
+
 if(NOT role STREQUAL "PROJECT")
   message(SEND_ERROR "CMAKE_ROLE property is \"${role}\", should be \"PROJECT\"")
 endif()

Tests/RunCMake/CMakeRoleGlobalProperty/RunCMakeTest.cmake

@@ -2,6 +2,9 @@ include(RunCMake)
 include(RunCTest)
 
 run_cmake(Project)
+file(WRITE "${RunCMake_BINARY_DIR}/Project-build/test.cmake" "# b")
+run_cmake_command(ProjectBuild "${CMAKE_COMMAND}" --build "${RunCMake_BINARY_DIR}/Project-build")
+
 run_cmake_command(Script "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_LIST_DIR}/Script.cmake")
 run_cmake_command(FindPackage "${CMAKE_COMMAND}" --find-package -DNAME=DummyPackage -DCOMPILER_ID=GNU -DLANGUAGE=CXX -DMODE=EXIST "-DCMAKE_MODULE_PATH=${CMAKE_CURRENT_LIST_DIR}")
 run_ctest(CTest)