--- old/src/share/classes/com/sun/tools/javac/code/Type.java	2009-12-27 19:02:16.000000000 +0100
+++ new/src/share/classes/com/sun/tools/javac/code/Type.java	2009-12-27 19:02:16.000000000 +0100
@@ -790,7 +790,15 @@
                           Type restype,
                           List<Type> thrown,
                           TypeSymbol methodClass) {
-            super(METHOD, methodClass);
+            this(METHOD, argtypes, restype, thrown, methodClass);
+        }
+        
+        public MethodType(int tag,  // METHOD or FUNCTION
+                          List<Type> argtypes,
+                          Type restype,
+                          List<Type> thrown,
+                          TypeSymbol methodClass) {
+            super(tag, methodClass);
             this.argtypes = argtypes;
             this.restype = restype;
             this.thrown = thrown;
@@ -859,7 +867,7 @@
             if (argtypes1 == argtypes &&
                 restype1 == restype &&
                 thrown1 == thrown) return this;
-            else return new MethodType(argtypes1, restype1, thrown1, tsym);
+            else return new MethodType(tag, argtypes1, restype1, thrown1, tsym);
         }
 
         public boolean contains(Type elem) {