Give a language to a type

This changes main_type to hold a language, and updates the debug
readers to set this field.  This is done by adding the language to the
type-allocator object.

Note that the non-DWARF readers are changed on a "best effort" basis.

This patch also reimplements type::is_array_like to use the type's
language, and it adds a new type::is_string_like as well.  This in
turn lets us change the Python implementation of these methods to
simply defer to the type.

1 files changed, 2 insertions, 4 deletions

diff --git a/gdb/valarith.c b/gdb/valarith.c
index ef376f0..f3acf98 100644
--- a/gdb/valarith.c
+++ b/gdb/valarith.c
@@ -262,10 +262,8 @@ value_to_array (struct value *val)
 
   if (type->is_array_like ())
     {
-      if (HAVE_GNAT_AUX_INFO (type))
-	return ada_coerce_to_simple_array (val);
-      if (HAVE_RUST_SPECIFIC (type))
-	return rust_slice_to_array (val);
+      const language_defn *defn = language_def (type->language ());
+      return defn->to_array (val);
     }
   return nullptr;
 }