Use `asset_path` with error checking for all calls to `path_to_asset`

Currently, `asset_path` with error checking is aliased to `path_to_asset_with_errors`. This requires having to override `javascript_path`, `javascript_url`, `stylesheet_path`, `stylesheet_url` in order to check if assets accessed using those helpers need to be included in the precompile array. By aliasing the `asset_path` with error checking to `path_to_assets` which those helpers already use, we force the helpers to go through the error checking.