infer_clone/infer/documentation/issues/DEAD_STORE.md

This error is reported in C++. It fires when the value assigned to a variables
is never used (e.g., `int i = 1; i = 2; return i;`).
[help] import issue types documentation from website Summary: Take all the issue type documentation in the website and add it to infer itself so it can generate the website (see further diffs). I mostly generated this diff by writing a script to call from `utop` with various file lists to do most of the heavy lifting for me and make sure I didn't forget any issue types: P132800781 Reviewed By: ngorogiannis Differential Revision: D21934372 fbshipit-source-id: f3ea8c566 5 years ago			`This error is reported in C++. It fires when the value assigned to a variables`
			is never used (e.g., `int i = 1; i = 2; return i;`).