Fix struct, union, and enum nesting in C++

In C, an enum or structure defined inside other structure has global
scope just like it had been defined outside the struct in the first
place.  However, in C++, such a nested structure is given a name that
is nested inside the structure.  This patch moves such affected
structures/enums out to global scope, so that code using them works
the same in C++ as it works today in C.

gdb/ChangeLog:
2015-02-27  Tom Tromey  <tromey@redhat.com>
	    Pedro Alves  <palves@redhat.com>

	* dwarf2-frame.c (enum cfa_how_kind, struct
	dwarf2_frame_state_reg_info): Move out of struct
	dwarf2_frame_state.
	* dwarf2read.c (struct tu_stats): Move out of struct
	dwarf2_per_objfile.
	(struct file_entry): Move out of struct line_header.
	(struct nextfield, struct nextfnfield, struct fnfieldlist, struct
	typedef_field_list): Move out of struct field_info.
	* gdbtypes.h (enum dynamic_prop_kind, union dynamic_prop_data):
	Move out of struct dynamic_prop.
	(union type_owner, union field_location, struct field, struct
	range_bounds, union type_specific): Move out of struct main_type.
	(struct fn_fieldlist, struct fn_field, struct typedef_field)
	(VOFFSET_STATIC): Move out of struct cplus_struct_type.
	(struct call_site_target, union call_site_parameter_u, struct
	call_site_parameter): Move out of struct call_site.
	* m32c-tdep.c (enum m32c_prologue_kind): Move out of struct
	m32c_prologue.
	(enum srcdest_kind): Move out of struct srcdest.
	* main.c (enum cmdarg_kind): Move out of struct cmdarg.
	* prologue-value.h (enum prologue_value_kind): Move out of struct
	prologue_value.
	* s390-linux-tdep.c (enum s390_abi_kind): Move out of struct
	gdbarch_tdep.
	* stabsread.c (struct nextfield, struct next_fnfieldlist): Move
	out of struct field_info.
	* symfile.h (struct other_sections): Move out of struct
	section_addr_info.
	* symtab.c (struct symbol_cache_slot): Move out struct
	block_symbol_cache.
	* target-descriptions.c (enum tdesc_type_kind): Move out of
	typedef struct tdesc_type.
	* tui/tui-data.h (enum tui_line_or_address_kind): Move out of
	struct tui_line_or_address.
	* value.c (enum internalvar_kind, union internalvar_data): Move
	out of struct internalvar.
	* xtensa-tdep.h (struct ctype_cache): Move out of struct
	gdbarch_tdep.

1 files changed, 28 insertions, 26 deletions

diff --git a/gdb/target-descriptions.c b/gdb/target-descriptions.c
index 885d461..0eec6be 100644
--- a/gdb/target-descriptions.c
+++ b/gdb/target-descriptions.c
@@ -101,38 +101,40 @@ typedef struct tdesc_type_flag
 } tdesc_type_flag;
 DEF_VEC_O(tdesc_type_flag);
 
+enum tdesc_type_kind
+{
+  /* Predefined types.  */
+  TDESC_TYPE_INT8,
+  TDESC_TYPE_INT16,
+  TDESC_TYPE_INT32,
+  TDESC_TYPE_INT64,
+  TDESC_TYPE_INT128,
+  TDESC_TYPE_UINT8,
+  TDESC_TYPE_UINT16,
+  TDESC_TYPE_UINT32,
+  TDESC_TYPE_UINT64,
+  TDESC_TYPE_UINT128,
+  TDESC_TYPE_CODE_PTR,
+  TDESC_TYPE_DATA_PTR,
+  TDESC_TYPE_IEEE_SINGLE,
+  TDESC_TYPE_IEEE_DOUBLE,
+  TDESC_TYPE_ARM_FPA_EXT,
+  TDESC_TYPE_I387_EXT,
+
+  /* Types defined by a target feature.  */
+  TDESC_TYPE_VECTOR,
+  TDESC_TYPE_STRUCT,
+  TDESC_TYPE_UNION,
+  TDESC_TYPE_FLAGS
+};
+
 typedef struct tdesc_type
 {
   /* The name of this type.  */
   char *name;
 
   /* Identify the kind of this type.  */
-  enum
-  {
-    /* Predefined types.  */
-    TDESC_TYPE_INT8,
-    TDESC_TYPE_INT16,
-    TDESC_TYPE_INT32,
-    TDESC_TYPE_INT64,
-    TDESC_TYPE_INT128,
-    TDESC_TYPE_UINT8,
-    TDESC_TYPE_UINT16,
-    TDESC_TYPE_UINT32,
-    TDESC_TYPE_UINT64,
-    TDESC_TYPE_UINT128,
-    TDESC_TYPE_CODE_PTR,
-    TDESC_TYPE_DATA_PTR,
-    TDESC_TYPE_IEEE_SINGLE,
-    TDESC_TYPE_IEEE_DOUBLE,
-    TDESC_TYPE_ARM_FPA_EXT,
-    TDESC_TYPE_I387_EXT,
-
-    /* Types defined by a target feature.  */
-    TDESC_TYPE_VECTOR,
-    TDESC_TYPE_STRUCT,
-    TDESC_TYPE_UNION,
-    TDESC_TYPE_FLAGS
-  } kind;
+  enum tdesc_type_kind kind;
 
   /* Kind-specific data.  */
   union