message: Fix template strings
diff: @@ -705,9 +705,9 @@ export class LuaTranspiler {
  node.templateSpans.forEach(span => {
  const expr = this.transpileExpression(span.expression, true);
  if (ts.isTemplateTail(span.literal)) {
  - parts.push(expr + `.."${span.literal.text}"`);
  + parts.push(`tostring(${expr}).."${span.literal.text}"`);
  } else {
  - parts.push(expr + `.."${span.literal.text}"`);
  + parts.push(`tostring(${expr}).."${span.literal.text}"`);
  }
  });
  return parts.join("..");
  