Fix up extraData reporting.

libdevcore/Exceptions.h

@@ -76,4 +76,6 @@ using errinfo_hash256 = boost::error_info<struct tag_hash, h256>;
 using errinfo_required_h256 = boost::error_info<struct tag_required_h256, h256>;
 using errinfo_got_h256 = boost::error_info<struct tag_get_h256, h256>;
 using Hash256RequirementError = boost::tuple<errinfo_required_h256, errinfo_got_h256>;
+using errinfo_extraData = boost::error_info<struct tag_extraData, bytes>;
+
 }

libethcore/Ethash.cpp

@@ -98,7 +98,7 @@ void Ethash::BlockHeaderRaw::populateFromHeader(RLP const& _header, Strictness _
 			BOOST_THROW_EXCEPTION(InvalidGasLimit() << RequirementError(bigint(c_minGasLimit), bigint(m_gasLimit)) );
 
 		if (m_number && m_extraData.size() > c_maximumExtraDataSize)
-			BOOST_THROW_EXCEPTION(ExtraDataTooBig() << RequirementError(bigint(c_maximumExtraDataSize), bigint(m_extraData.size())));
+			BOOST_THROW_EXCEPTION(ExtraDataTooBig() << RequirementError(bigint(c_maximumExtraDataSize), bigint(m_extraData.size())) << errinfo_extraData(m_extraData));
 	}
 }
 

libethereum/State.h

@@ -52,7 +52,6 @@ using errinfo_uncleNumber = boost::error_info<struct tag_uncleNumber, u256>;
 using errinfo_unclesExcluded = boost::error_info<struct tag_unclesExcluded, h256Hash>;
 using errinfo_block = boost::error_info<struct tag_block, bytes>;
 using errinfo_now = boost::error_info<struct tag_now, unsigned>;
-using errinfo_extraData = boost::error_info<struct tag_extraData, bytes>;
 
 using errinfo_transactionIndex = boost::error_info<struct tag_transactionIndex, unsigned>;