1fc605a8ae fix bench/prevector.cpp (Akio Nakamura)
Pull request description:
This patch intends to fix some incorrect action of bench/prevector.cpp.
1. PrevectorClear()
2nd call of ```clear()``` should to operate t1 instead of t0.
This patch changes t0 to t1.
2. PREVECTOR_TEST()
PREVECTOR_TEST macro should to call both
```PrevectorXX<nontrivial_t>(state)``` and ```PrevectorXX<trivial_t>(state)```
by specific ```"name"``` which given by parameter instead of calling
```PrevectorResize<>()``` regardless of ```"name"```.
This patch changes ```"PrevectorResize<"``` of this macro to
```"Prevector ## name<"```.
Tree-SHA512: d0498c6d627d7e96fc8ccfb329ca0be2641535b1ce1923d9b1fc720825f9bf4d7281dc8d5ae929038e37b3e625189af9807cb62e6d20933d73832a6dff4b5596