Change minimal_symbol inheritance
This changes struct minimal_symbol to inherit from general_symbol_info and updates various macros to cope. Because MSYMBOL_SET_LANGUAGE and MSYMBOL_SET_NAMES were only used from a single spot, this patch removes them in favor of simply inlining their definitions. I consider this to be somewhat cleaner, not least because the "phony polymorphism" provided by such macros is not useful in practice. gdb/ChangeLog 2019-03-15 Tom Tromey <firstname.lastname@example.org> * symtab.h (struct minimal_symbol): Derive from general_symbol_info. (MSYMBOL_VALUE, MSYMBOL_VALUE_RAW_ADDRESS) (MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SEARCH_NAME): Update. (MSYMBOL_SET_LANGUAGE, MSYMBOL_SET_NAMES): Remove. * solib.c (gdb_bfd_lookup_symbol_from_symtab): Don't use memset. * minsyms.c (minimal_symbol_reader::record_full): Update.
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