[build] Fix a clang warning

test/cctest/trace-extension.cc

Index: test/cctest/trace-extension.cc
diff --git a/test/cctest/trace-extension.cc b/test/cctest/trace-extension.cc
index 6eb81b2b735f221efd325172c77b8313fc3d11a6..19f8cd88cfa6e91401f6a0ede2abecd2bd672241 100644
--- a/test/cctest/trace-extension.cc
+++ b/test/cctest/trace-extension.cc
@@ -86,7 +86,7 @@ Address TraceExtension::GetFP(const v8::FunctionCallbackInfo<v8::Value>& args) {
 #else
 #error Host architecture is neither 32-bit nor 64-bit.
 #endif
-  printf("Trace: %p\n", fp);
+  printf("Trace: %p\n", static_cast<void*>(fp));
   return fp;
 }