completed expr/stmt unification

1 files changed, 4 insertions, 2 deletions

diff --git a/compiler/sem.nim b/compiler/sem.nim
index 791ca2793..cd332ad90 100644
--- a/compiler/sem.nim
+++ b/compiler/sem.nim
@@ -68,8 +68,10 @@ proc commonType*(x, y: PType): PType =
   var a = skipTypes(x, {tyGenericInst})
   var b = skipTypes(y, {tyGenericInst})
   result = x
-  if a.kind in {tyExpr, tyNil}: return y
-  elif b.kind in {tyExpr, tyNil}: return x
+  if a.kind in {tyExpr, tyNil}: result = y
+  elif b.kind in {tyExpr, tyNil}: result = x
+  elif a.kind == tyStmt: result = a
+  elif b.kind == tyStmt: result = b
   elif b.kind in {tyArray, tyArrayConstr, tySet, tySequence} and 
       a.kind == b.kind:
     # check for seq[empty] vs. seq[int]