add display_sctable fn to ast_util

src/libsyntax/ast_util.rs

@@ -907,6 +907,15 @@ pub fn get_sctable() -> @mut SCTable {
     }
 }
 
+/// print out an SCTable for debugging
+pub fn display_sctable(table : &SCTable) {
+    error!("SC table:");
+    for (idx,val) in table.table.iter().enumerate() {
+        error!("%4u : %?",idx,val);
+    }
+}
+
+
 /// Add a value to the end of a vec, return its index
 fn idx_push<T>(vec: &mut ~[T], val: T) -> uint {
     vec.push(val);