Warning: is opting out of caching

[JohannKa]

Has quoted in ember-basic-dropdown (cibernox/ember-basic-dropdown#690 (comment))
ember-maybe-in-element@^2.0.3 triggers this warning :

[Packaged Application Javascript]broccoli-babel-transpiler is opting out of caching due to a plugin that does not provide a caching strategy: `function embroiderFirstMacrosTransform(env) {
        if (!opts.packageRoot && !env.filename) {
            throw new Error(`bug in @embroider/macros. Running without packageRoot but don't have filename.`);
        }
        let packageCache = shared_internals_1.PackageCache.shared('embroider-stage3', opts.appRoot);
        let scopeStack = [];
        // packageRoot is set when we run inside classic ember-cli. Otherwise we're in
        // Embroider, where we can use absolute filenames.
        const moduleName = opts.packageRoot ? env.meta.moduleName : env.filename;
        return {
            name: '@embroider/macros/first',
            visitor: {
                Program: {
                    enter(node) {
                        if (node.blockParams.length > 0) {
                            scopeStack.push(node.blockParams);
                        }
                    },
                    exit(node) {
                        if (node.blockParams.length > 0) {
                            scopeStack.pop();
                        }
                    },
                },
                SubExpression(node) {
                    if (node.path.type !== 'PathExpression') {
                        return;
                    }
                    if (inScope(scopeStack, node.path.parts[0])) {
                        return;
                    }
                    if (node.path.original === 'macroGetOwnConfig') {
                        return (0, literal_1.default)((0, get_config_1.default)(node, opts.configs, opts.packageRoot, moduleName, true, packageCache), env.syntax.builders);
                    }
                    if (node.path.original === 'macroGetConfig') {
                        return (0, literal_1.default)((0, get_config_1.default)(node, opts.configs, opts.packageRoot, moduleName, false, packageCache), env.syntax.builders);
                    }
                    if (node.path.original === 'macroDependencySatisfies') {
                        return (0, literal_1.default)((0, dependency_satisfies_1.default)(node, opts.packageRoot, moduleName, packageCache), env.syntax.builders);
                    }
                },
                MustacheStatement(node) {
                    if (node.path.type !== 'PathExpression') {
                        return;
                    }
                    if (inScope(scopeStack, node.path.parts[0])) {
                        return;
                    }
                    if (node.path.original === 'macroGetOwnConfig') {
                        return env.syntax.builders.mustache((0, literal_1.default)((0, get_config_1.default)(node, opts.configs, opts.packageRoot, moduleName, true, packageCache), env.syntax.builders));
                    }
                    if (node.path.original === 'macroGetConfig') {
                        return env.syntax.builders.mustache((0, literal_1.default)((0, get_config_1.default)(node, opts.configs, opts.packageRoot, moduleName, false, packageCache), env.syntax.builders));
                    }
                    if (node.path.original === 'macroDependencySatisfies') {
                        return env.syntax.builders.mustache((0, literal_1.default)((0, dependency_satisfies_1.default)(node, opts.packageRoot, moduleName, packageCache), env.syntax.builders));
                    }
                },
            },
        };
    }

[andreyfel]

It seems that this PR #54 resolves this issue as well. @cibernox @snewcomer can you guys take a look?