More flailing on log syntax due to call-expr ambiguity in previous attempt.

src/comp/syntax/parse/parser.rs

@@ -910,10 +910,13 @@ fn parse_bottom_expr(p: parser) -> @ast::expr {
             ex = ast::expr_fail(some(e));
         } else { ex = ast::expr_fail(none); }
     } else if eat_word(p, "log_full") {
+        expect(p, token::LPAREN);
         let lvl = parse_expr(p);
+        expect(p, token::COMMA);
         let e = parse_expr(p);
         ex = ast::expr_log(2, lvl, e);
-        hi = e.span.hi;
+        hi = p.get_hi_pos();
+        expect(p, token::RPAREN);
     } else if eat_word(p, "log") {
         let e = parse_expr(p);
         ex = ast::expr_log(1, mk_lit_u32(p, 1u32), e);

src/comp/syntax/print/pprust.rs

@@ -919,8 +919,12 @@ fn print_expr(s: ps, &&expr: @ast::expr) {
           0 { word_nbsp(s, "log_err"); print_expr(s, expr); }
           2 {
             word_nbsp(s, "log_full");
-            word(s.s, " ");
+            popen(s);
             print_expr(s, lexp);
+            word(s.s, ",");
+            space_if_not_bol(s);
+            print_expr(s, expr);
+            pclose(s);
           }
         }
       }