gdb/

Fix gcc-4.5 HEAD warnings for enum ada_operator.
	* Makefile.in (HFILES_NO_SRCDIR): Add ada-operator.inc.
	* ada-lang.h (enum ada_operator): Move it to ...
	* ada-operator.inc: ... a new file.
	* expression.h (enum exp_opcode): Include ada-operator.inc.
	New element OP_UNUSED_LAST.  Update comment for OP_EXTENDED0.

gdb/
	Fix gcc-4.5 HEAD warnings for GDB_FORM_cached_string.
	* dwarf2read.c (GDB_FORM_cached_string)
	(dwarf_form_name <GDB_FORM_cached_string>): Remove.
	(struct attribute <dwarf_form>): Reduce the bit width.
	(struct attribute <string_is_canonical>, DW_STRING_IS_CANONICAL): New.
	(read_attribute_value <DW_FORM_string>)
	(read_attribute_value <DW_FORM_strp>): Initialize
	DW_STRING_IS_CANONICAL.
	(dwarf2_name, dump_die_shallow <DW_FORM_string>)
	(dump_die_shallow <DW_FORM_strp>): Update the code using former
	GDB_FORM_cached_string.

gdb/ada-lang.h

@@ -79,92 +79,6 @@ struct ada_opname_map
 /* Defined in ada-lang.c */
 extern const struct ada_opname_map ada_opname_table[];
 
-enum ada_operator 
-  {
-    /* X IN A'RANGE(N).  N is an immediate operand, surrounded by 
-       BINOP_IN_BOUNDS before and after.  A is an array, X an index 
-       value.  Evaluates to true iff X is within range of the Nth
-       dimension (1-based) of A.  (A multi-dimensional array
-       type is represented as array of array of ...) */
-    BINOP_IN_BOUNDS = OP_EXTENDED0,
-
-    /* X IN L .. U.  True iff L <= X <= U.  */
-    TERNOP_IN_RANGE,
-
-    /* Ada attributes ('Foo). */
-    OP_ATR_FIRST,
-    OP_ATR_LAST,
-    OP_ATR_LENGTH,
-    OP_ATR_IMAGE,
-    OP_ATR_MAX,
-    OP_ATR_MIN,
-    OP_ATR_MODULUS,
-    OP_ATR_POS,
-    OP_ATR_SIZE,
-    OP_ATR_TAG,
-    OP_ATR_VAL,
-
-    /* Ada type qualification.  It is encoded as for UNOP_CAST, above, 
-       and denotes the TYPE'(EXPR) construct. */
-    UNOP_QUAL,
-
-    /* X IN TYPE.  The `TYPE' argument is immediate, with 
-       UNOP_IN_RANGE before and after it. True iff X is a member of 
-       type TYPE (typically a subrange). */
-    UNOP_IN_RANGE,
-
-    /* An aggregate.   A single immediate operand, N>0, gives
-       the number of component specifications that follow.  The
-       immediate operand is followed by a second OP_AGGREGATE.  
-       Next come N component specifications.  A component
-       specification is either an OP_OTHERS (others=>...), an
-       OP_CHOICES (for named associations), or other expression (for
-       positional aggregates only).  Aggregates currently
-       occur only as the right sides of assignments. */
-    OP_AGGREGATE,
-
-    /* An others clause.  Followed by a single expression. */
-    OP_OTHERS,
-
-    /* An aggregate component association.  A single immediate operand, N, 
-       gives the number of choices that follow.  This is followed by a second
-       OP_CHOICES operator.  Next come N operands, each of which is an
-       expression, an OP_DISCRETE_RANGE, or an OP_NAME---the latter 
-       for a simple name that must be a record component name and does 
-       not correspond to a single existing symbol.  After the N choice 
-       indicators comes an expression giving the value.
-
-       In an aggregate such as (X => E1, ...), where X is a simple
-       name, X could syntactically be either a component_selector_name 
-       or an expression used as a discrete_choice, depending on the
-       aggregate's type context.  Since this is not known at parsing
-       time, we don't attempt to disambiguate X if it has multiple
-       definitions, but instead supply an OP_NAME.  If X has a single
-       definition, we represent it with an OP_VAR_VALUE, even though
-       it may turn out to be within a record aggregate.  Aggregate 
-       evaluation can use either OP_NAMEs or OP_VAR_VALUEs to get a
-       record field name, and can evaluate OP_VAR_VALUE normally to
-       get its value as an expression.  Unfortunately, we lose out in
-       cases where X has multiple meanings and is part of an array
-       aggregate.  I hope these are not common enough to annoy users,
-       who can work around the problem in any case by putting
-       parentheses around X. */
-    OP_CHOICES,
-
-    /* A positional aggregate component association.  The operator is 
-       followed by a single integer indicating the position in the 
-       aggregate (0-based), followed by a second OP_POSITIONAL.  Next 
-       follows a single expression giving the component value.  */
-    OP_POSITIONAL,
-
-    /* A range of values.  Followed by two expressions giving the
-       upper and lower bounds of the range. */
-    OP_DISCRETE_RANGE,       
-
-    /* End marker */
-    OP_ADA_LAST
-  };
-
 /* A tuple, (symbol, block), representing one instance of a 
  * symbol-lookup operation. */
 struct ada_symbol_info {