non-ASCII Symbols need to be quoted to be parsed with 1.8
use Thread.pass in looping threads to ensure others get a chance to run
Update specs for Refinements conforming to the latest spec described at <https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/RefinementsSpec>.
Complex#marshal_dump and Rational#marshal_dump are private in Ruby 2.0.
Kernel#remove_instance_variable is public in Ruby 2.0.
Use send because Time#_dump is private in Ruby 2.0.
DateTime.parse("2012-11-08T15:43:61") raises an ArgumentError in Ruby 2.0.
Use send because Time#_load is private in Ruby 2.0.
String#lines, chars, and codepoints return arrays when no block given in Ruby 2.0.
"\0".inspect returns '"\\0"' in Ruby 2.0.
Proc#== and eql? are removed in Ruby 2.0.
Method#== and eql? return false for methods defined using the same block/proc in Ruby 2.0.
:"\0".inspect returns ':"\\0"' in Ruby 2.0.
Use the rm_r helper as much as possible
Merge pull request #171 from eregon/rm_r

Use the rm_r helper as much as possible
Basic specs for LUPDecomposition#determinant
Fix specs for eigensystem of rotation matrices
Merge branch 'master' of github.com:rubyspec/rubyspec
Fix spec for modulo of bigdecimal due to [Bug #7404]
Add spec for bug with EigenvalueDecomposition