Merging r230694:
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    r230694 | chaoren | 2015-02-26 14:15:16 -0800 (Thu, 26 Feb 2015) | 16 lines
    
    Fix Bug 20400
    
    Summary:
    http://llvm.org/bugs/show_bug.cgi?id=20400
    
    The default triple of i686-pc-linux-gnu for 32 bit linux targets is compatible
    but not necessarily identical to the inferior binaries.
    
    Applying Azat Khuzhin's solution of using ArchSpec::IsCompatibleMatch() instead
    of ArchSpec::IsExactMatch() when comparing ObjectFile and Modules architecture.
    
    Reviewers: vharron
    
    Subscribers: lldb-commits
    
    Differential Revision: http://reviews.llvm.org/D7897
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    llvm-svn: 232574