add a TypeVariableOrigin we'll use later (DerivingFn)

This commit is contained in:
Niko Matsakis 2017-03-17 09:36:44 -04:00
parent 555b6d69b2
commit 27f4b57602

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@ -42,6 +42,7 @@ pub enum TypeVariableOrigin {
AdjustmentType(Span),
DivergingStmt(Span),
DivergingBlockExpr(Span),
DivergingFn(Span),
LatticeVariable(Span),
}