possible bug with let in kotlin 1.0 beta

possible_bug_with_let.kt

  fun thisFunctionThrows() {
        val a="aa"
        a.let {
            if(a!="aa")  //<----------------
                throw IllegalArgumentException()
        }
  }
  
  fun thisFunctionDoesNotThrows() {
        val a="aa"
        a.let {
            if(a!="aa") 
            {  //<----------------
                throw IllegalArgumentException()
            } //<----------------
        }
  }