add types for segments api (#93)

* add types for segments api
WebAssembly/binaryen@89b8af0

Author: thejchap

index.d.ts

@@ -1640,9 +1640,14 @@ declare module binaryen {
     addGlobal(name: string, type: Type, mutable: boolean, init: ExpressionRef): GlobalRef;
     getGlobal(name: string): GlobalRef;
     removeGlobal(name: string): void;
-    addTable(name: string, initial: number, maximum: number, type: Type): TableRef;
+    addTable(name: string, initial: number, maximum: number): TableRef;
     getTable(name: string): TableRef;
     removeTable(name: string): void;
+    addActiveElementSegment(table: string, name: string, funcNames: string[], offset: ExpressionRef): ElementSegmentRef;
+    addPassiveElementSegment(name: string, funcNames: string[]): ElementSegmentRef;
+    getElementSegment(name: string): ElementSegmentRef;
+    getTableSegments(table: string): string[];
+    removeElementSegment(name: string): void;
     addTag(name: string, params: Type, results: Type): TagRef;
     getTag(name: string): TagRef;
     removeTag(name: string): void;