Fix debuggersupport=off build after r17184 and r18149.

R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/209533002

Patch from Kang-Hao (Kenny) Lu <kennyluck@csail.mit.edu>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20193 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/d8-debug.h

@@ -31,6 +31,7 @@
 
 #include "d8.h"
 #include "debug.h"
+#include "platform/socket.h"
 
 
 namespace v8 {

src/full-codegen.cc

@@ -883,7 +883,7 @@ void FullCodeGenerator::SetExpressionPosition(Expression* expr) {
     }
   }
 #else
-  CodeGenerator::RecordPositions(masm_, pos);
+  CodeGenerator::RecordPositions(masm_, expr->position());
 #endif
 }