Alan Woodward 0c010e1bfc lang-expressions should use DoubleValuesSource, not ValueSource (#53661)
DoubleValuesSource is the type-safe replacement for ValueSource in the lucene
core. Most of elasticsearch has moved to use these, but lang-expressions is still
using the old version. This commit migrates lang-expressions as well.
2020-03-23 14:48:38 +00:00
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