Added type recording for unary minus and unary bitwise negation. Note that the

src/ast.h

Index: src/ast.h
===================================================================
--- src/ast.h	(revision 7683)
+++ src/ast.h	(working copy)
@@ -1390,8 +1390,8 @@
 
 class UnaryOperation: public Expression {
  public:
-  UnaryOperation(Token::Value op, Expression* expression)
-      : op_(op), expression_(expression) {
+  UnaryOperation(Token::Value op, Expression* expression, int pos)
+      : op_(op), expression_(expression), pos_(pos) {
     ASSERT(Token::IsUnaryOp(op));
   }
 
@@ -1403,10 +1403,12 @@
 
   Token::Value op() const { return op_; }
   Expression* expression() const { return expression_; }
+  virtual int position() const { return pos_; }
 
  private:
   Token::Value op_;
   Expression* expression_;
+  int pos_;
 };