cmake: Copy cov_tool_wrapper.sh.in to the build tree

This change ensures that `cov_tool_wrapper.sh.in` is available when
invoking the `Coverage.cmake` script from any directory.

CMakeLists.txt

@@ -442,6 +442,7 @@ endif()
 configure_file(cmake/script/Coverage.cmake Coverage.cmake USE_SOURCE_PERMISSIONS COPYONLY)
 configure_file(cmake/script/CoverageFuzz.cmake CoverageFuzz.cmake USE_SOURCE_PERMISSIONS COPYONLY)
 configure_file(cmake/script/CoverageInclude.cmake.in CoverageInclude.cmake USE_SOURCE_PERMISSIONS @ONLY)
+configure_file(cmake/script/cov_tool_wrapper.sh.in cov_tool_wrapper.sh.in USE_SOURCE_PERMISSIONS COPYONLY)
 configure_file(contrib/filter-lcov.py filter-lcov.py USE_SOURCE_PERMISSIONS COPYONLY)
 
 # Don't allow extended (non-ASCII) symbols in identifiers. This is easier for code review.

cmake/script/CoverageInclude.cmake.in

@@ -12,7 +12,7 @@ endif()
 
 # COV_TOOL is used to replace a placeholder.
 configure_file(
-  cmake/cov_tool_wrapper.sh.in ${CMAKE_CURRENT_LIST_DIR}/cov_tool_wrapper.sh
+  ${CMAKE_CURRENT_LIST_DIR}/cov_tool_wrapper.sh.in ${CMAKE_CURRENT_LIST_DIR}/cov_tool_wrapper.sh
   FILE_PERMISSIONS OWNER_READ OWNER_EXECUTE
                    GROUP_READ GROUP_EXECUTE
                    WORLD_READ