Add failing test for #9685

Author: julienrf

tests/neg-macros/i9685bis.check

@@ -0,0 +1,4 @@
+-- [E008] Not Found Error: tests/neg-macros/i9685bis.scala:14:4 --------------------------------------------------------
+14 |  1.asdf // error
+   |  ^^^^^^
+   |  value asdf is not a member of Int

tests/neg-macros/i9685bis.scala

@@ -0,0 +1,12 @@
+package foo
+
+import scala.language.implicitConversions
+
+class Foo
+
+object Foo:
+
+  inline implicit def toFoo(x: Int): Foo = Foo()
+
+object Usage:
+  1.asdf // error