Tests/FortranModules: move issue 25112 fix from FortranOnly

It involves modules, so it belongs in the `FortranModules` test set.

Tests/FortranModules/CMakeLists.txt

@@ -125,3 +125,5 @@ add_subdirectory(Executable)
 if(CMake_TEST_Fortran_SUBMODULES)
   add_subdirectory(Submodules)
 endif()
+
+add_subdirectory(Issue25112)

Tests/FortranModules/Issue25112/CMakeLists.txt

@@ -0,0 +1,4 @@
+set(CMAKE_Fortran_MODULE_DIRECTORY "${PROJECT_BINARY_DIR}/include")
+add_library(objmod OBJECT objmod.f90)
+add_executable(objmain objmain.f90)
+target_link_libraries(objmain PRIVATE objmod)

Tests/FortranOnly/CMakeLists.txt

@@ -186,9 +186,3 @@ if(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_OFF AND
 
   set_property(SOURCE no_preprocess_source_upper.F no_preprocess_source_fpp.fpp PROPERTY Fortran_PREPROCESS OFF)
 endif()
-
-# Issue 25112
-set(CMAKE_Fortran_MODULE_DIRECTORY "${PROJECT_BINARY_DIR}/include")
-add_library(objmod OBJECT objmod.f90)
-add_executable(objmain objmain.f90)
-target_link_libraries(objmain PRIVATE objmod)