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Tim Keith 42d7ac3e36 [flang] Fix link error from last integration
We need to be able to analyze the `Variable` in a `Selector` and an
expression. That worked in a previous iteration of `expression.h` by
analyzing each variant of `Variable`.

This fix adds an explicit public function to analyze a Variable and
return a `MaybeExpr`.

Original-commit: flang-compiler/f18@9848a5d48f
Reviewed-on: https://github.com/flang-compiler/f18/pull/262
2019-01-16 17:18:10 -08:00
flang [flang] Fix link error from last integration 2019-01-16 17:18:10 -08:00