message: fix wrong string types
diff: @@ -13,7 +13,7 @@ export type Param = {
  "nullable"?: 1;
  "type-original": string;
  "optional"?: 1;
  - "variadic"?: string;
  + "variadic"?: 1;
  "treat-null-as"?: string;
  };
  @@ -48,7 +48,7 @@ export type Property = {
  "read-only"?: 1;
  "replaceable"?: string;
  "put-forwards"?: string;
  - "stringifier"?: string;
  + "stringifier"?: 1;
  "tags"?: string;
  "property-descriptor-not-enumerable"?: string;
  "content-attribute"?: string;
  @@ -68,7 +68,7 @@ export type Property = {
  "lenient-this"?: string;
  "treat-null-as"?: string;
  "event-handler-map-to-window"?: string;
  - "static"?: string;
  + "static"?: 1;
  "comment"?: string;
  "override-type"?: string;
  "required"?: 1;
  @@ -96,10 +96,10 @@ export type Event = {
  export type Method = {
  "name": string;
  "tags"?: string;
  - "static"?: string;
  + "static"?: 1;
  "getter"?: 1;
  - "stringifier"?: string;
  - "serializer"?: string;
  + "stringifier"?: 1;
  + "serializer"?: 1;
  "serializer-info"?: string;
  "comment"?: string;
  "override-signatures"?: string[];
  @@ -174,7 +174,7 @@ export type Interface = {
  "constructor"?: Constructor;
  "secure-context"?: string;
  "implements"?: string[];
  - "static"?: undefined;
  + "static"?: 1;
  "anonymous-methods"?: {
  "method": Method[];
  };
  