sweep up -Wformat warnings from gcc

This is a purely mechanical change explicitly casting any parameters for printf
style conversion.  This cleans up the warnings emitted by gcc 4.8 on Linux.

llvm-svn: 205607
diff --git a/lldb/source/Core/Mangled.cpp b/lldb/source/Core/Mangled.cpp
index 55bd3cb..60cd80f 100644
--- a/lldb/source/Core/Mangled.cpp
+++ b/lldb/source/Core/Mangled.cpp
@@ -5242,7 +5242,8 @@
 void
 Mangled::DumpDebug (Stream *s) const
 {
-    s->Printf("%*p: Mangled mangled = ", (int)sizeof(void*) * 2, this);
+    s->Printf("%*p: Mangled mangled = ", static_cast<int>(sizeof(void*) * 2),
+              static_cast<const void*>(this));
     m_mangled.DumpDebug(s);
     s->Printf(", demangled = ");
     m_demangled.DumpDebug(s);