dbghelp: Declare some functions static

[Andrew Talbot]

Changelog:
    dbghelp: Declare some functions static.

diff --git a/dlls/dbghelp/dbghelp_private.h b/dlls/dbghelp/dbghelp_private.h
index 3eb420e..880aed9 100644
--- a/dlls/dbghelp/dbghelp_private.h
+++ b/dlls/dbghelp/dbghelp_private.h
@@ -91,7 +91,6 @@ void     hash_table_init(struct pool* pool, struct hash_table* ht,
 void     hash_table_destroy(struct hash_table* ht);
 void     hash_table_add(struct hash_table* ht, struct hash_table_elt* elt);
 void*    hash_table_find(const struct hash_table* ht, const char* name);
-unsigned hash_table_hash(const char* name, unsigned num_buckets);
 
 struct hash_table_iter
 {
@@ -439,9 +438,6 @@ extern struct module*
                     module_find_by_addr(const struct process* pcs, unsigned long addr,
                                         enum module_type type);
 extern struct module*
-                    module_find_by_name(const struct process* pcs,
-                                        const WCHAR* name);
-extern struct module*
                     module_find_by_nameA(const struct process* pcs,
                                          const char* name);
 extern struct module*
@@ -454,9 +450,6 @@ extern struct module*
                                unsigned long addr, unsigned long size,
                                unsigned long stamp, unsigned long checksum);
 extern struct module*
-                    module_get_container(const struct process* pcs,
-                                         const struct module* inner);
-extern struct module*
                     module_get_containee(const struct process* pcs,
                                          const struct module* inner);
 extern enum module_type
diff --git a/dlls/dbghelp/module.c b/dlls/dbghelp/module.c
index ddc6d3d..c25561b 100644
--- a/dlls/dbghelp/module.c
+++ b/dlls/dbghelp/module.c
@@ -188,7 +188,7 @@ struct module* module_new(struct process* pcs, const WCHAR* name,
  *	module_find_by_name
  *
  */
-struct module* module_find_by_name(const struct process* pcs, const WCHAR* name)
+static struct module* module_find_by_name(const struct process* pcs, const WCHAR* name)
 {
     struct module*      module;
 
@@ -238,7 +238,7 @@ struct module* module_is_already_loaded(const struct process* pcs, const WCHAR*
  *           module_get_container
  *
  */
-struct module* module_get_container(const struct process* pcs, 
+static struct module* module_get_container(const struct process* pcs, 
                                     const struct module* inner)
 {
     struct module*      module;
diff --git a/dlls/dbghelp/storage.c b/dlls/dbghelp/storage.c
index 04ea378..ec8a37d 100644
--- a/dlls/dbghelp/storage.c
+++ b/dlls/dbghelp/storage.c
@@ -298,7 +298,7 @@ unsigned sparse_array_length(const struct sparse_array* sa)
     return sa->elements.num_elts;
 }
 
-unsigned hash_table_hash(const char* name, unsigned num_buckets)
+static unsigned hash_table_hash(const char* name, unsigned num_buckets)
 {
     unsigned    hash = 0;
     while (*name)