dbghelp: change pointer cast to DWORD_PTR

[Austin English]

-- 
-Austin
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diff --git a/dlls/dbghelp/dbghelp_private.h b/dlls/dbghelp/dbghelp_private.h
index 0345a3f..34791ca 100644
--- a/dlls/dbghelp/dbghelp_private.h
+++ b/dlls/dbghelp/dbghelp_private.h
@@ -474,7 +474,7 @@ extern BOOL         path_find_symbol_file(const struct process* pcs, PCSTR full_
                                           BOOL* is_unmatched);
 
 /* pe_module.c */
-extern BOOL         pe_load_nt_header(HANDLE hProc, DWORD base, IMAGE_NT_HEADERS* nth);
+extern BOOL         pe_load_nt_header(HANDLE hProc, DWORD_PTR base, IMAGE_NT_HEADERS* nth);
 extern struct module*
                     pe_load_native_module(struct process* pcs, const WCHAR* name,
                                           HANDLE hFile, DWORD base, DWORD size);
diff --git a/dlls/dbghelp/pe_module.c b/dlls/dbghelp/pe_module.c
index 4e77790..8b499d8 100644
--- a/dlls/dbghelp/pe_module.c
+++ b/dlls/dbghelp/pe_module.c
@@ -367,7 +367,7 @@ struct module* pe_load_native_module(struct process* pcs, const WCHAR* name,
  *		pe_load_nt_header
  *
  */
-BOOL pe_load_nt_header(HANDLE hProc, DWORD base, IMAGE_NT_HEADERS* nth)
+BOOL pe_load_nt_header(HANDLE hProc, DWORD_PTR base, IMAGE_NT_HEADERS* nth)
 {
     IMAGE_DOS_HEADER    dos;