Fix coregrind header files such that they can be included without

having to worry what other header files may have to be included
beforehand.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13549

include/pub_tool_stacktrace.h

@@ -31,6 +31,8 @@
 #ifndef __PUB_TOOL_STACKTRACE_H
 #define __PUB_TOOL_STACKTRACE_H
 
+#include "pub_tool_basics.h"   // Addr
+
 // The basic stack trace type:  just an array of code addresses.
 typedef Addr* StackTrace;