Always pass an explicit language down to c_type_print

The next patch will want to do language->print_type(type, ...), to
print a type in a given language, avoiding a dependency on the current
language.  That doesn't work correctly currently, however, because
most language implementations of language_defn::print_type call
c_print_type without passing down the language.  There are two
overloads of c_print_type, one that takes a language, and one that
does not.  The one that does not uses the current language, defeating
the point of calling language->print_type()...

This commit removes the c_print_type overload that does not take a
language, and adjusts the codebase throughout to always pass down a
language.  In most places, there's already an enum language handy.
language_defn::print_type implementations naturally pass down
this->la_language.  In a couple spots, like in ada-typeprint.c and
rust-lang.c there's no enum language handy, but the code is written
for a specific language, so we just hardcode the language.

In gnuv3_print_method_ptr, I wasn't sure whether we could hardcode C++
here, and we don't have an enum language handy, so I made it use the
current language, just like today.  Can always be improved later.

Change-Id: Ib54fab4cf0fd307bfd55bf1dd5056830096a653b

1 files changed, 3 insertions, 2 deletions

diff --git a/gdb/rust-lang.c b/gdb/rust-lang.c
index bf8dba99ecd..746f565947b 100644
--- a/gdb/rust-lang.c
+++ b/gdb/rust-lang.c
@@ -669,7 +669,7 @@ rust_print_struct_def (struct type *type, const char *varstring,
 
   /* If we see a base class, delegate to C.  */
   if (TYPE_N_BASECLASSES (type) > 0)
-    c_print_type (type, varstring, stream, show, level, flags);
+    c_print_type (type, varstring, stream, show, level, language_rust, flags);
 
   if (flags->print_offsets)
     {
@@ -922,7 +922,8 @@ rust_internal_print_type (struct type *type, const char *varstring,
 
     default:
     c_printer:
-      c_print_type (type, varstring, stream, show, level, flags);
+      c_print_type (type, varstring, stream, show, level, language_rust,
+		    flags);
     }
 }