gdb/

gdb/
	Revert this part of:
	2011-10-09  Jan Kratochvil  <jan.kratochvil@redhat.com>
	Support @entry in input expressions.
	* c-exp.y (ENTRY, unknown_cpp_name): New.
	(exp: UNKNOWN_CPP_NAME): Change to `exp: unknown_cpp_name'.
	(unknown_cpp_name: UNKNOWN_CPP_NAME, unknown_cpp_name: ENTRY)
	(variable: name_not_typename '@' ENTRY, name: ENTRY)
	(name_not_typename: ENTRY): New.
	(yylex): Recognize ENTRY.

	Reimplement @entry in input expressions.
	* c-exp.y (ENTRY): New.
	(variable: name_not_typename ENTRY): New.
	(lex_one_token): Optionally return ENTRY instead of the '@' lex.

gdb/testsuite/
	Reimplement @entry in input expressions.
	* gdb.base/exprs.c (v_int_array_init): New variable.
	* gdb.base/exprs.exp (print v_int_array_init)
	(print *v_int_array_init@1, print *v_int_array_init@2)
	(print v_int_array_init[0]@1, print v_int_array_init[0]@2)
	(print v_int_array_init[1]@1): New tests.