* symtab.cc (Symbol_table::add_from_dynobj): If we see a protected

	* symtab.cc (Symbol_table::add_from_dynobj): If we see a protected
	symbol, change it to have default visibility.
	* testsuite/protected_1.cc: New file.
	* testsuite/protected_2.cc: New file.
	* testsuite/protected_3.cc: New file.
	* testsuite/protected_main_1.cc: New file.
	* testsuite/protected_main_2.cc: New file.
	* testsuite/protected_main_3.cc: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add protected_1.
	(protected_1_SOURCES, protected_1_DEPENDENCIES): Define.
	(protected_1_LDFLAGS, protected_1_LDADD): Define.
	(protected_1.so): New target.
	(protected_1_pic.o, protected_2_pic.o): New targets.
	(protected_3_pic.o): New target.
	(check_PROGRAMS): Add protected_2.
	(protected_2_SOURCES, protected_2_DEPENDENCIES): Define.
	(protected_2_LDFLAGS, protected_2_LDADD): Define.
	* testsuite/Makefile.in: Rebuild.