This internal function loads all objects from a package namespace into a specified environment. It is used by `create_covr_list_no_skip()` to prepare the environment for coverage analysis.
load_package_into_env(pkg_source_path, pkg, cov_env)Invisibly returns TRUE if successful, otherwise stops with an error.
Path to the package source directory.
Name of the package to load.
Environment into which package objects will be loaded.