SI-6355 SI-7059 it is possible to overload applyDynamic

As our discussion at https://issues.scala-lang.org/browse/SI-6355 shows,
it looks like it is possible to overload applyDynamic, even though a
straightforward way is closed. This commit codifies the pattern proposed
by @paulp and makes sure that it doesn’t break in the future.

1 files changed, 19 insertions, 0 deletions

diff --git a/test/files/neg/t6355a.scala b/test/files/neg/t6355a.scala
new file mode 100644
index 0000000000..0500ed04c6
--- /dev/null
+++ b/test/files/neg/t6355a.scala
@@ -0,0 +1,19 @@
+package foo
+
+import scala.language.dynamics
+
+class DoesntExtendDynamic {
+  def applyDynamic(name: String)(s: String): Int = 1
+  def applyDynamic(name: String)(x: Int): Int = 2
+}
+
+class A extends Dynamic {
+  def applyDynamic(name: String)(s: String): Int = 1
+  def applyDynamic(name: String)(x: Int): Int = 2
+}
+
+class B extends Dynamic {
+  def applyDynamic[T1](name: String)(x: T1): Int = 1
+  def applyDynamic[T1, T2](name: String)(x: T1, y: T2): Int = 2
+  def applyDynamic[T1, T2](name: String)(x: String, y: T1, z: T2): Int = 3
+}