Add an infinite loop construct

Add a loop {} construct for infinite loops, and use it in test
cases. See #1906 for details.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/rustc/syntax/print/pprust.rs b/src/rustc/syntax/print/pprust.rs
index 2db67a0c97d..ba9c76c748f 100644
--- a/src/rustc/syntax/print/pprust.rs
+++ b/src/rustc/syntax/print/pprust.rs
@@ -913,6 +913,11 @@ fn print_expr(s: ps, &&expr: @ast::expr) {
         space(s.s);
         print_block(s, blk);
       }
+      ast::expr_loop(blk) {
+        head(s, "loop");
+        space(s.s);
+        print_block(s, blk);
+      }
       ast::expr_for(decl, expr, blk) {
         head(s, "for");
         print_for_decl(s, decl, expr);