Use hir::Place in closure_captures

[arora-aman]

Ensure that field/member are marked borrowed/moved instead of variable hir_id.

This would look something like https://github.com/rust-lang/project-rfc-2229/blob/master/closure_captures.md

[arora-aman]

Depends on #12 and #2

[arora-aman]

closure_captures generated at: https://github.com/rust-lang/rust/blob/28946b3486d507418b8a4acb92d5e2baae193d65/src/librustc_typeck/check/upvar.rs#L115

Related to InferBorrowKind defined in rustc_typeck/check/upvar.rs

and might require adjust_upvar_captures to use a Place similar to closure_captures

This is then called from expr_use_visitor: https://github.com/rust-lang/rust/blob/28946b3486d507418b8a4acb92d5e2baae193d65/src/librustc_typeck/expr_use_visitor.rs#L554

[arora-aman]

https://rustc-dev-guide.rust-lang.org/closure.html?highlight=InferBorrowKind#inferences-in-the-compiler