[PRISM] Fix InterpolatedStringNode
If the first element of an interpolated string node is an embedded statement, CRuby "pre-initializes" the interpolation with a string of known encoding to concat into.
This patch replicates thate behaviour in Prism
[PRISM] Fix InterpolatedStringNode
If the first element of an interpolated string node is an embedded
statement, CRuby "pre-initializes" the interpolation with a string of
known encoding to concat into.
This patch replicates thate behaviour in Prism