implied that "no side effects" was nonfunctional.
* eval.c (evaluate_subexp): Add BINOP_CONCAT case to deal with
character string and bitstring concatenation.
* expprint.c (dump_expression): Add case for BINOP_CONCAT.
* expression.h (exp_opcode): Add BINOP_CONCAT.
* gdbtypes.h (type_code): Add TYPE_CODE_BITSTRING.
* language.c (string_type): Add function to determine if a type
is a string type.
* language.c (binop_type_check): Add case for BINOP_CONCAT.
* valarith.c (value_concat): New function to concatenate two
values, such as character strings or bitstrings.
* valops.c (value_string): Remove error stub and implement
function body.
* value.h (value_concat): Add prototype.
**** start-sanitize-chill ****
* ch-exp.y (operand_3): Add actions for SLASH_SLASH (//).
* ch-exp.y (yylex): Recognize SLASH_SLASH.
* ch-lang.c (chill_op_print_tab): Add SLASH_SLASH (//) as
BINOP_CONCAT.
**** end-sanitize-chill ****