SI-8006 prevents infinite applyDynamicNamed desugarings

Since mkInvoke, the applyDynamic/selectDynamic/etc desugarer, is disconnected
from typedNamedApply, the applyDynamicNamed argument rewriter, the latter
doesn’t know whether it needs to apply the rewriting because the application
has just been desugared or it needs to hold on because it’s already performed
a desugaring on this tree.

This commit introduces the attachment that links these translation facilities,
preventing infinite applyDynamicNamed desugarings.

1 files changed, 8 insertions, 0 deletions

diff --git a/test/files/neg/t8006.scala b/test/files/neg/t8006.scala
new file mode 100644
index 0000000000..b2f71c1587
--- /dev/null
+++ b/test/files/neg/t8006.scala
@@ -0,0 +1,8 @@
+object X {
+  val d = new D
+  d.meth(value1 = 10, value2 = 100) // two arguments here, but only one is allowed
+}
+import language.dynamics
+class D extends Dynamic {
+  def applyDynamicNamed(name: String)(value: (String, Any)) = name
+}
\ No newline at end of file