Check the size of pid_t in art::mirror::Class.

Ensure that `art::mirror::Class::clinit_thread_id_` (which is a C
`pid_t` value) and `java.lang.Class.clinitThreadId` (which is a Java
32-bit `int` value) have the same size.

Test: mmma art
Change-Id: Ief8e962a3d012be8f0aa966849496fba6a9fb3b8
1 file changed