RFR: 8033057: clang: friend declaration specifying a default argument must be a definition

[Henry Jen]

Hi,

Please review a fix on an error reported by clang 3.4.

http://cr.openjdk.java.net/~henryjen/jdk9/8033057/webrev/

The fix is to be comforming to C++ 11 spec, quoted,

C++11: §8.3.6.4
"If a friend declaration specifies a default argument expression,
that declaration shall be a definition and shall be the only declaration
of the function or function template in the translation unit."

A working draft for C++ 11 can be found at
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3376.pdf

Cheers,
Henry