This is a minor adjustment to 2b22dae1ba /
I3e9d7c1c7a6599a8e68302448bbb961d051002b7
Basically having the error point to the operand instead of the operator
kind of makes sense, but it would require error spans to *truly* make
sense, and in the meantime maintaining the logic is more hassle than it
is worth.
Change-Id: Idac98dd77a0f4a6cb386cb74e0d4eb5fd2f503e5