Update win32.api to current cvs.
Add __RPC_USER as a calling convention in winapi.
diff --git a/tools/winapi/winapi_function.pm b/tools/winapi/winapi_function.pm
index fa128b8..5ab4a63 100644
--- a/tools/winapi/winapi_function.pm
+++ b/tools/winapi/winapi_function.pm
@@ -309,7 +309,7 @@
     } elsif(/^(?:VFWAPIV|WINAPIV)$/) {
 	if(!defined($suffix)) { return undef; }
 	return "pascal$suffix"; # FIXME: Is this correct?
-    } elsif(/^(?:__stdcall|__RPC_STUB|NET_API_FUNCTION|RPC_ENTRY|VFWAPI|WINAPI|CALLBACK)$/) {
+    } elsif(/^(?:__stdcall|__RPC_STUB|__RPC_USER|NET_API_FUNCTION|RPC_ENTRY|VFWAPI|WINAPI|CALLBACK)$/) {
 	if(!defined($suffix)) { return undef; }
 	return "pascal$suffix";
     } elsif($_ eq "__asm") {
@@ -327,7 +327,7 @@
 	return "cdecl";
     } elsif(/^(?:VFWAPIV|WINAPIV)$/) {
 	return "varargs";
-    } elsif(/^(?:__stdcall|__RPC_STUB|NET_API_FUNCTION|RPC_ENTRY|VFWAPI|WINAPI|CALLBACK)$/) {
+    } elsif(/^(?:__stdcall|__RPC_STUB|__RPC_USER|NET_API_FUNCTION|RPC_ENTRY|VFWAPI|WINAPI|CALLBACK)$/) {
 	return "stdcall";
     } elsif($_ eq "__asm") {
 	return "asm";