[patch] trans-mem: Require parentheses when parsing transaction expressions.

[Aldy Hernandez]

On 11/07/11 19:36, Torvald Riegel wrote:
> patch2 fixes parsing of transaction expressions, so that two txn
> expressions that are part of a single expression do not get treated as
> nested txns anymore, but become two separate ones (see test case).
> Approved off-line by Richard Henderson, but I'll run tests again
> tomorrow just to be sure.
>
> patch1 is a trivial fix for one of the previous test cases (add cleanup
> for dump tree, fix a typo in a comment).

This was submitted and approved before the cut-off date, so I think it 
is ok to commit after I get the merge in.  I don't want to jeopardize my 
pristine tree that has been fully tested.

Thanks.