[PATCH v2] Make the 3rd operand of ternary '?:' bind tighter than binary '='

[Yichun Zhang (agentzh)]

Hello!

On Tue, Aug 28, 2018 at 10:26 AM Yichun Zhang (agentzh) wrote:
> In the C language, the 3rd operand of the ternary operator binds tighter
> than the binary assignment operators. It is better for the stap language
> to be consistent with C in operator precedence.
>

Just for the record, I've just changed `parse_assignment ()` back to
`parse_expression ()` as per fche's suggestion and committed it to
master with his green light on IRC.

Best,
Yichun