compressedteximage: set mipfilter to nearest
This is a test for the glCompressedTexImage details, not for linear mipfilter precision. So let's just set the mipfilter to nearest so we don't get test-failures for the wrong reason.
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This is a test for the glCompressedTexImage details, not for linear mipfilter precision. So let's just set the mipfilter to nearest so we don't get test-failures for the wrong reason.