message: Remove commented out constructor from Scalar
  This appears to have been commented out since the initial checkin of
  lldb.
diff: @@ -76,49 +76,6 @@ Scalar::Scalar() : m_type(e_void), m_float((float)0) {}
  Scalar::Scalar(const Scalar &rhs)
  : m_type(rhs.m_type), m_integer(rhs.m_integer), m_float(rhs.m_float) {}
  -// Scalar::Scalar(const RegisterValue& reg) :
  -// m_type(e_void),
  -// m_data()
  -//{
  -// switch (reg.info.encoding)
  -// {
  -// case eEncodingUint: // unsigned integer
  -// switch (reg.info.byte_size)
  -// {
  -// case 1: m_type = e_uint; m_data.uint = reg.value.uint8; break;
  -// case 2: m_type = e_uint; m_data.uint = reg.value.uint16; break;
  -// case 4: m_type = e_uint; m_data.uint = reg.value.uint32; break;
  -// case 8: m_type = e_ulonglong; m_data.ulonglong = reg.value.uint64;
  -// break;
  -// break;
  -// }
  -// break;
  -//
  -// case eEncodingSint: // signed integer
  -// switch (reg.info.byte_size)
  -// {
  -// case 1: m_type = e_sint; m_data.sint = reg.value.sint8; break;
  -// case 2: m_type = e_sint; m_data.sint = reg.value.sint16; break;
  -// case 4: m_type = e_sint; m_data.sint = reg.value.sint32; break;
  -// case 8: m_type = e_slonglong; m_data.slonglong = reg.value.sint64;
  -// break;
  -// break;
  -// }
  -// break;
  -//
  -// case eEncodingIEEE754: // float
  -// switch (reg.info.byte_size)
  -// {
  -// case 4: m_type = e_float; m_data.flt = reg.value.float32; break;
  -// case 8: m_type = e_double; m_data.dbl = reg.value.float64; break;
  -// break;
  -// }
  -// break;
  -// case eEncodingVector: // vector registers
  -// break;
  -// }
  -//}
  -
  bool Scalar::GetData(DataExtractor &data, size_t limit_byte_size) const {
  size_t byte_size = GetByteSize();
  if (byte_size > 0) {
  