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-rw-r--r--src/reflect/scala/reflect/internal/TreeInfo.scala2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/reflect/scala/reflect/internal/TreeInfo.scala b/src/reflect/scala/reflect/internal/TreeInfo.scala
index a5cf46071f..cd1f5f2e47 100644
--- a/src/reflect/scala/reflect/internal/TreeInfo.scala
+++ b/src/reflect/scala/reflect/internal/TreeInfo.scala
@@ -208,7 +208,7 @@ abstract class TreeInfo {
}
def isWarnableSymbol = {
val sym = tree.symbol
- (sym == null) || !(sym.isModule || sym.isLazy) || {
+ (sym == null) || !(sym.isModule || sym.isLazy || definitions.isByNameParamType(sym.tpe_*)) || {
debuglog("'Pure' but side-effecting expression in statement position: " + tree)
false
}