code: function ASTManager(serviceRegistry, jsProject) {
  		this.cache = new LRU(10);
  		this.orionAcorn = new OrionAcorn();
  		this.jsProject = jsProject;
  		registry = serviceRegistry;
  	}
docs: Provides a shared AST.
  @name javascript.ASTManager
  @class Provides a shared AST.
  @param {?} serviceRegistry The platform service registry
  @param {?} servjsProject The backing project context