[clang frontend] Refactor a check whether a type is POD for later use
[clang frontend] Refactor a check whether a type is POD for later use

Reviewed By: jvillard

Differential Revision: D26815667

fbshipit-source-id: a54ab98bd

jvillard/infer,facebook/infer,jvillard/infer,facebook/infer,facebook/infer,jvillard/infer,jvillard/infer,jvillard/infer,jvillard/infer,facebook/infer,facebook/infer,facebook/infer,facebook/infer,jvillard/infer