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This option instructs the linker to display mangled or unmangled
C++ symbol names in diagnostic messages, and in listings produced
by the --xref, --xreffrom, --xrefto,
and --symbols options.
If --unmangled is selected, C++ symbol names
are displayed as they appear in your source code.
If --mangled is selected, C++ symbol names
are displayed as they appear in the object symbol tables.