[CUDA] Fix implicit-device-lambda.cu after r282911.
[CUDA] Fix implicit-device-lambda.cu after r282911.

This commit added a warning that we're (correctly) hitting in this test.
Just ignore it.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@282927 91177308-0d34-0410-b5e6-96231b3b80d8

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