fixed invalid TS call and added test files (#6495)

e581013e3d broke TS generation - please don't use "replace" to refactor function names :)

tests/my-game/example2/monster.ts

@@ -0,0 +1,62 @@
+// automatically generated by the FlatBuffers compiler, do not modify
+
+import * as flatbuffers from 'flatbuffers';
+
+
+
+export class Monster {
+  bb: flatbuffers.ByteBuffer|null = null;
+  bb_pos = 0;
+__init(i:number, bb:flatbuffers.ByteBuffer):Monster {
+  this.bb_pos = i;
+  this.bb = bb;
+  return this;
+}
+
+static getRootAsMonster(bb:flatbuffers.ByteBuffer, obj?:Monster):Monster {
+  return (obj || new Monster()).__init(bb.readInt32(bb.position()) + bb.position(), bb);
+}
+
+static getSizePrefixedRootAsMonster(bb:flatbuffers.ByteBuffer, obj?:Monster):Monster {
+  bb.setPosition(bb.position() + flatbuffers.SIZE_PREFIX_LENGTH);
+  return (obj || new Monster()).__init(bb.readInt32(bb.position()) + bb.position(), bb);
+}
+
+static startMonster(builder:flatbuffers.Builder) {
+  builder.startObject(0);
+}
+
+static endMonster(builder:flatbuffers.Builder):flatbuffers.Offset {
+  const offset = builder.endObject();
+  return offset;
+}
+
+static createMonster(builder:flatbuffers.Builder):flatbuffers.Offset {
+  Monster.startMonster(builder);
+  return Monster.endMonster(builder);
+}
+
+serialize():Uint8Array {
+  return this.bb!.bytes();
+}
+
+static deserialize(buffer: Uint8Array):Monster {
+  return Monster.getRootAsMonster(new flatbuffers.ByteBuffer(buffer))
+}
+
+unpack(): MonsterT {
+  return new MonsterT();
+}
+
+
+unpackTo(_o: MonsterT): void {}
+}
+
+export class MonsterT {
+constructor(){}
+
+
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return Monster.createMonster(builder);
+}
+}