fixed a bug so that ExprEditor#edit(NewExpr) can process a method compiled by Eclipse.

git-svn-id: http://anonsvn.jboss.org/repos/javassist/trunk@205 30ef5769-5b8d-40dd-aea6-55b5d6557bb3

src/main/javassist/expr/NewExpr.java

@@ -125,6 +125,8 @@ public class NewExpr extends Expr {
         else if (op == Opcode.DUP_X1
                  && iterator.byteAt(newPos + 4) == Opcode.SWAP)
             return 5;
+        else if (op == Opcode.INVOKESPECIAL)
+            return 3;   // for Eclipse's compiler
         else
             throw new CannotCompileException(
                         "sorry, cannot edit NEW followed by no DUP");