function mergeManifest(oParentManifest, oChildManifest) {
		var oMergedManifest = Object.assign({}, oParentManifest);
		delete oChildManifest.boot;
		oMergedManifest.preBoot = oMergedManifest.preBoot ? oMergedManifest.preBoot : [];
		oMergedManifest.preBoot = oMergedManifest.preBoot.concat(oChildManifest.preBoot || []);
		oChildManifest.postBoot = oChildManifest.postBoot ? oChildManifest.postBoot : [];
		oMergedManifest.postBoot = oChildManifest.postBoot.concat(oMergedManifest.postBoot || []);
		return oMergedManifest;
	}
Load boot manifest chain

@private
@ui5-restricted sap.ui.core