Export astToString

Author: xyliew25

src/index.ts

@@ -1,6 +1,7 @@
+import { astToString } from './ast/utils/astToString'
 import * as ECE from './ec-evaluator'
 import * as JVM from './jvm'
 import { typeCheck } from './types'
 import { compile, compileFromSource} from './compiler'
 
-export { ECE, JVM, typeCheck, compile, compileFromSource }
+export { astToString, ECE, JVM, typeCheck, compile, compileFromSource }