Fix bug in decoding of method metadata

Author: marijnh

src/comp/metadata/decoder.rs

@@ -286,7 +286,7 @@ fn get_impls_for_mod(cdata: cmd, m_id: ast::node_id,
         let did = translate_def_id(cdata, parse_def_id(ebml::doc_data(doc)));
         let item = lookup_item(did.node, data), nm = item_name(item);
         if alt name { some(n) { n == nm } none { true } } {
-            let base_tps = item_ty_param_count(doc);
+            let base_tps = item_ty_param_count(item);
             result += [@{did: did, ident: nm,
                          methods: item_impl_methods(cdata, item, base_tps)}];
         }

src/comp/middle/trans/base.rs

@@ -2509,7 +2509,7 @@ fn lval_static_fn(bcx: @block_ctxt, fn_id: ast::def_id, id: ast::node_id,
        !vec::any(tys, {|t| ty::type_has_params(t)}) {
         let mono = alt substs {
           some((stys, dicts)) {
-            if (vec::len(stys) + vec::len(stys)) > 0u {
+            if (vec::len(stys) + vec::len(tys)) > 0u {
                 monomorphic_fn(ccx, fn_id, stys + tys, some(dicts))
             } else { none }
           }