fort_dyn_array: Enable dynamic member types inside a structure.

Fortran supports dynamic types for which bounds, size and location
can vary during their lifetime. As a result of the dynamic
behaviour, they have to be resolved at every query.
This patch will resolve the type of a structure field when it
is dynamic.

2016-04-26  Bernhard Heckel  <bernhard.heckel@intel.com>
2016-04-26  Keven Boell  <keven.boell@intel.com>

Before:
(gdb) print threev%ivla(1)
Cannot access memory at address 0x3
(gdb) print threev%ivla(5)
no such vector element

After:
(gdb) print threev%ivla(1)
$9 = 1
(gdb) print threev%ivla(5)
$10 = 42

gdb/Changelog:

	* NEWS: Add new supported features for fortran.
	* gdbtypes.c (remove_dyn_prop): New.
	(resolve_dynamic_struct): Keep type length for fortran structs.
	* gdbtypes.h: Forward declaration of new function.
	* value.c (value_address): Return dynamic resolved location of a value.
	(set_value_component_location): Adjust the value address
	for single value prints.
	(value_primitive_field): Support value types with a dynamic location.
	(set_internalvar): Remove dynamic location property of
	internal variables.

gdb/testsuite/Changelog:

	* gdb.fortran/vla-type.f90: New file.
	* gdb.fortran/vla-type.exp: New file.

1 files changed, 3 insertions, 0 deletions

diff --git a/gdb/gdbtypes.h b/gdb/gdbtypes.h
index 1518a7ad82b..c651c88a5b5 100644
--- a/gdb/gdbtypes.h
+++ b/gdb/gdbtypes.h
@@ -1826,6 +1826,9 @@ extern void add_dyn_prop
   (enum dynamic_prop_node_kind kind, struct dynamic_prop prop,
    struct type *type, struct objfile *objfile);
 
+extern void remove_dyn_prop (enum dynamic_prop_node_kind prop_kind,
+                             struct type *type);
+
 extern struct type *check_typedef (struct type *);
 
 extern void check_stub_method_group (struct type *, int);