gdb: move type_map_instance to compile/compile.c

It's only used in compile/compile.c, it doesn't need to be in a header.

Change-Id: Ic5bec996b7b0cd7130055d1e8ff238b5ac4292a3
Reviewed-By: Bruno Larsen <blarsen@redhat.com>

gdb/compile/compile-internal.h

@@ -26,19 +26,6 @@ extern bool compile_debug;
 
 struct block;
 
-/* An object that maps a gdb type to a gcc type.  */
-
-struct type_map_instance
-{
-  /* The gdb type.  */
-
-  struct type *type;
-
-  /* The corresponding gcc type handle.  */
-
-  gcc_type gcc_type_handle;
-};
-
 /* An object of this type holds state associated with a given
    compilation job.  */
 

gdb/compile/compile.c

@@ -74,6 +74,19 @@ struct symbol_error
   char *message;
 };
 
+/* An object that maps a gdb type to a gcc type.  */
+
+struct type_map_instance
+{
+  /* The gdb type.  */
+
+  struct type *type;
+
+  /* The corresponding gcc type handle.  */
+
+  gcc_type gcc_type_handle;
+};
+
 /* Hash a type_map_instance.  */
 
 static hashval_t