kernel: Resource browsing.

Try to be a bit more strict when checking for resource mapping in
exception handler (and prevent some exceptions while in exception
handler).
diff --git a/dlls/kernel/except.c b/dlls/kernel/except.c
index 1c97a2e..95c5ce9 100644
--- a/dlls/kernel/except.c
+++ b/dlls/kernel/except.c
@@ -403,7 +403,7 @@
     if (!rec->ExceptionInformation[0]) return FALSE;  /* not a write access */
     addr = (void *)rec->ExceptionInformation[1];
     if (!VirtualQuery( addr, &info, sizeof(info) )) return FALSE;
-    if (info.State == MEM_FREE) return FALSE;
+    if (info.State == MEM_FREE || !(info.Type & MEM_IMAGE)) return FALSE;
     if (!(rsrc = RtlImageDirectoryEntryToData( (HMODULE)info.AllocationBase, TRUE,
                                               IMAGE_DIRECTORY_ENTRY_RESOURCE, &size )))
         return FALSE;