merge revision(s) 37406: [Backport #7176]
* ext/bigdecimal/bigdecimal.c (BigDecimal_add), test/bigdecimal/test_bigdecimal.rb: need to specify precision for converting Rational and Float. [ruby-core:48045] [Bug #7176]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@37550 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 37406: [Backport #7176]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@37550 b2dd03c8-39d4-4d8f-98ff-823fe69b080e