replaced by catching a KeyError exception.
*   `tf.contrib.data`
    *   Deprecate, and replace by tf.data.experimental.
*   Other:
    *   Instead of jemalloc, revert back to using system malloc since it
        simplifies build and has comparable performance.
    *   Remove integer types from `tf.nn.softplus` and `tf.nn.softsign` OpDefs.

pkg testing, method (BenchmarkResult) AllocedBytesPerOp() int64
pkg testing, method (BenchmarkResult) AllocsPerOp() int64
pkg testing, method (BenchmarkResult) MemString() string
pkg testing, type BenchmarkResult struct, MemAllocs uint64
pkg testing, type BenchmarkResult struct, MemBytes uint64
pkg text/scanner, const Char = -5
pkg text/scanner, const Comment = -8
pkg text/scanner, const EOF = -1
pkg text/scanner, const Float = -4