HashMap.opBinaryRight

"in" is unsafe as it can point to arbitrary address after resize

  1. auto opBinaryRight(K k)
  2. auto opBinaryRight(K k)
    struct HashMap(K, V, Allocator = Mallocator, bool GCRangesAllowed = true)
    deprecated("very unsafe, use fetch instead") const @system
    opBinaryRight
    (
    string op
    K
    )
    (
    K k
    )
    if (
    op == "in"
    )