SI-6436 Handle ambiguous string processors

Before, we got in an inifinite loop by chasing
the error typed result of adaptToMemberWithArgs.

One point of befuddlement remains: why did t6436 and t6436b
behave differently before this change?

1 files changed, 9 insertions, 0 deletions

diff --git a/test/files/neg/t6436b.scala b/test/files/neg/t6436b.scala
new file mode 100644
index 0000000000..8023329e90
--- /dev/null
+++ b/test/files/neg/t6436b.scala
@@ -0,0 +1,9 @@
+object quasiquotes {
+  implicit def foo1(ctx: StringContext) = new { def q = ??? }
+  implicit def foo2(ctx: StringContext) = new { def q = ??? }
+}
+
+object Test extends App {
+  import quasiquotes._
+  println(StringContext("a").q())
+}