Set::print() is broken after 7013538 changes.

[t@46 l@46]: call pt_ptset.print()
# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/vectset.hpp:154
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (src/share/vm/libadt/vectset.hpp:154), pid=14153, tid=46
# Error: ShouldNotCall()
#
  [8] report_should_not_call(file = 0xfffffcffb3ccee93 "src/share/vm/libadt/vectset.hpp", line = 154), line 253 in "src/share/vm/utilities/debug.cpp"
  [9] VectorSet::iterate(this = 0x2dc56e8, _ARG2 = 16U), line 154 in "src/share/vm/libadt/vectset.hpp"
  [10] SetI::SetI(this = 0xfffffcfff52f4f38, s = 0x2dc56e8), line 244 in "src/share/vm/libadt/set.hpp"
  [11] Set::setstr(this = 0x2dd2a40), line 82 in "src/share/vm/libadt/set.cpp"
  [12] Set::print(this = 0x2dd2a40), line 118 in "src/share/vm/libadt/set.cpp"