SI-6372 cleans up the API of Attachments

Previously Attachments allowed multiple attachments that
correspond to the same attachment type.

This created a potential for confusion, given that Attachments.get
only searched for the first attachment of a given type.

Hence I made Attachments.add overwrite previously existing attachments
of a given type and renamed it to Attachments.update, so that the name
suits the intention better.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/compiler/scala/reflect/reify/codegen/GenSymbols.scala b/src/compiler/scala/reflect/reify/codegen/GenSymbols.scala
index c4b674955a..22a834d2e4 100644
--- a/src/compiler/scala/reflect/reify/codegen/GenSymbols.scala
+++ b/src/compiler/scala/reflect/reify/codegen/GenSymbols.scala
@@ -143,7 +143,7 @@ trait GenSymbols {
       //    produces valid Scala code (with vals in a block depending only on lexically preceding vals)
       val reification = reificode(sym)
       import reification.{name, binding}
-      val tree = reification.tree addAttachment ReifyBindingAttachment(binding)
+      val tree = reification.tree updateAttachment ReifyBindingAttachment(binding)
       state.symtab += (sym, name, tree)
     }
     fromSymtab