Don't adapt erroneous tree to SAM type.

Do not report second error. Go straight to the exit.

Based on review by Jason.

1 files changed, 7 insertions, 0 deletions

diff --git a/test/files/neg/sammy_error.scala b/test/files/neg/sammy_error.scala
new file mode 100644
index 0000000000..dbddebf325
--- /dev/null
+++ b/test/files/neg/sammy_error.scala
@@ -0,0 +1,7 @@
+trait F1[A, B] { def apply(a: A): B }
+
+class Test {
+  def foo[A](f1: F1[A, A]) = f1
+
+  foo(x => x) // should result in only one error (the second one stemmed from adapting to SAM when the tree was erroneous)
+}