Add disabled string interpolation test

Author: odersky

compiler/src/dotty/tools/dotc/typer/Inliner.scala

@@ -240,6 +240,7 @@ class Inliner(call: tpd.Tree, rhsToInline: tpd.Tree)(implicit ctx: Context) {
       }
       computeParamBindings(tp.resultType, Nil, argss)
     case tp: MethodType =>
+      assert(argss.nonEmpty, i"missing bindings: $tp in $call")
       (tp.paramNames, tp.paramInfos, argss.head).zipped.foreach { (name, paramtp, arg) =>
         paramBinding(name) = arg.tpe.dealias match {
           case _: SingletonType if isIdempotentExpr(arg) => arg.tpe

tests/disabled/run/xml-interpolation-3/Test_2.scala

@@ -0,0 +1,11 @@
+import XmlQuote._
+
+object Test {
+  def main(args: Array[String]): Unit = {
+
+    assert(xml"Hello Allan!" == Xml("Hello Allan!", Nil))
+
+    val name = new Object{}
+    assert(xml"Hello $name!" == Xml("Hello ??!", List(name)))
+  }
+}

tests/disabled/run/xml-interpolation-3/XmlQuote_1.scala

@@ -0,0 +1,19 @@
+import scala.quoted._
+import scala.tasty.Tasty
+
+import scala.language.implicitConversions
+
+case class Xml(parts: String, args: List[Any])
+
+object XmlQuote {
+
+  implicit object SCOps {
+    inline def xml(this inline ctx: StringContext)(args: => Any*): Xml =
+      ~XmlQuote.impl(ctx, '(args))
+  }
+
+  def impl(receiver: StringContext, args: Expr[Seq[Any]]): Expr[Xml] = {
+    val string = receiver.parts.mkString("??")
+    '(new Xml(~string.toExpr, (~args).toList))
+  }
+}