Stricter check in validateRpcKind
Stricter check in validateRpcKind

Summary: Ensure that request `RpcKind` matches method `RpcKind` exactly.

Reviewed By: iahs

Differential Revision: D32956969

fbshipit-source-id: 40fb333c3a8da83c55042b6c4c4c62757c0240d8

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