weird behaviours running specs

gistfile1.txt

* Error parsing symbols. 
Some specs fail because mspec raises an error with some symbols, this is an example:

    An exception occurred during: Mock.cleanup
    Hash#== returns true if other Hash has the same number of keys and each key-value pair matches, even though the default-value are not same ERROR
    NoMethodError: undefined method `first' for :"__mspec_14_eql?__":Symbol
    /home/david/dev/rubyspec/core/hash/equal_value_spec.rb:5
    /home/david/dev/rubyspec/core/hash/equal_value_spec.rb:55:in `load'


* Objects are equal when they shouldn't. 
Although the code is the same for ruby 1.8 and 1.9 modes some specs fail comparing objects. 
The next spec works fine in 1.8 mode but fails in 1.9 mode:

    Array#replace replaces the elements with elements from other array FAILED
    Expected ["a", "b", "c"]
     not to be identical to ["a", "b", "c"]
    /home/david/dev/rubyspec/core/array/shared/replace.rb:7
    /home/david/dev/rubyspec/core/array/replace_spec.rb:5
    /home/david/dev/rubyspec/core/array/replace_spec.rb:55:in `load'