function addNormal(moduleIdentifier) {
            const id = require.id(moduleIdentifier);

            if (bravojs.requireMemo[id] || bravojs.pendingModuleDeclarations[id]) {
                return;
            }

            normalizedDependencies.push(id);
        }
Normalize a dependency array so that only unique and previously unprovided
 dependencies appear in the output list. The output list also canonicalizes
 the module names relative to the current require. Labeled dependencies are
 unboxed.