The commit "[gdb/symtab] Fix language of duplicate static minimal symbol"
    introduces a performance regression, when loading a cc1 executable build with https://komiya-dental.com/
    -O0 -g and gcc 7.4.0.  The performance regression, measured in 'real' time is
    about 175%.
    
    The slower execution comes from the fact that the fix in symbol_set_names
    makes the call to symbol_find_demangled_name unconditional.
    http://www.iu-bloomington.com/
    Fix this by reverting the commit, and redoing the fix as follows.
    
    Recapturing the original problem, the first time symbol_set_names is called
    with gsymbol.language == lang_auto and linkage_name == "_ZL3foov", the name is https://www.webb-dev.co.uk/ 
    not present in the per_bfd->demangled_names_hash hash table, so
    symbol_find_demangled_name is called to demangle the name, after which the
    mangled/demangled pair is added to the hashtable.  The call to
    symbol_find_demangled_name also sets gsymbol.language to lang_cplus.
    The second time symbol_set_names is called with gsymbol.language == lang_auto https://waytowhatsnext.com/  
    and linkage_name == "_ZL3foov", the name is present in the hash table, so the
    demangled name from the hash table is used.  However, the language of the
    symbol remains lang_auto.
    
    Fix this by adding a field language in struct demangled_name_entry, and using http://www.acpirateradio.co.uk/ 
    the field in symbol_set_names to set the language of gsymbol, if necessary.
    
    Tested on x86_64-linux.

The commit "[gdb/symtab] Fix language of duplicate static minimal symbol"
    introduces a performance regression, when loading a cc1 executable build with http://www.logoarts.co.uk/ 
    -O0 -g and gcc 7.4.0.  The performance regression, measured in 'real' time is
    about 175%.
    
    The slower execution comes from the fact that the fix in symbol_set_names
    makes the call to symbol_find_demangled_name unconditional. http://www.slipstone.co.uk/ 
    
    Fix this by reverting the commit, and redoing the fix as follows.
     http://embermanchester.uk/ 
    Recapturing the original problem, the first time symbol_set_names is called
    with gsymbol.language == lang_auto and linkage_name == "_ZL3foov", http://connstr.net/  the name is
    not present in the per_bfd->demangled_names_hash hash table, so
    symbol_find_demangled_name is called to demangle the name, http://joerg.li/  after which the
    mangled/demangled pair is added to the hashtable.  The call to
    symbol_find_demangled_name also sets gsymbol.language to lang_cplus. http://www.jopspeech.com/
    The second time symbol_set_names is called with gsymbol.language == lang_auto
  http://www.wearelondonmade.com/   and linkage_name == "_ZL3foov", the name is present in the hash table, so the
    demangled name from the hash table is used.  However, the language of the
    symbol remains lang_auto.
    http://www.compilatori.com/
    Fix this by adding a field language in struct demangled_name_entry, and using
    the field in symbol_set_names to set the language of gsymbol, if necessary.
    http://www-look-4.com/ 
    Tested on x86_64-linux.

http://www.acpirateradio.co.uk/tech/nvidia-and-samsung/
http://www.slipstone.co.uk/category/tech/
http://embermanchester.uk/computers/latest-car-deals/
http://joerg.li/category/computers/
http://www.jopspeech.com/category/property/
http://www.wearelondonmade.com/travel/london/

This was fixed in gdb/master but it didn't get pushed to the 7.10 branch.
I've pushed it there now.
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