4 files changed, 33 insertions, 3 deletions
diff --git a/src/dotty/tools/dotc/printing/RefinedPrinter.scala b/src/dotty/tools/dotc/printing/RefinedPrinter.scala
index f1e6f5a52..eb6b151b4 100644
--- a/src/dotty/tools/dotc/printing/RefinedPrinter.scala
+++ b/src/dotty/tools/dotc/printing/RefinedPrinter.scala
@@ -3,7 +3,7 @@ package printing
 
 import core._
 import Texts._, Types._, Flags._, Names._, Symbols._, NameOps._, Constants._
-import Contexts.Context, Scopes.Scope, Denotations._, Annotations.Annotation
+import Contexts.Context, Scopes.Scope, Denotations._, SymDenotations._, Annotations.Annotation
 import StdNames.nme
 import ast.{Trees, untpd}
 import typer.Namer
@@ -481,6 +481,7 @@ class RefinedPrinter(_ctx: Context) extends PlainPrinter(_ctx) {
 
   override def toText(denot: Denotation): Text = denot match {
     case denot: MultiDenotation => denot.toString
+    case NoDenotation => "NoDenotation"
     case _ =>
       if (denot.symbol.exists) toText(denot.symbol)
       else "some " ~ toText(denot.info)
diff --git a/src/dotty/tools/dotc/typer/Typer.scala b/src/dotty/tools/dotc/typer/Typer.scala
index e3683d2cf..32680e34b 100644
--- a/src/dotty/tools/dotc/typer/Typer.scala
+++ b/src/dotty/tools/dotc/typer/Typer.scala
@@ -328,7 +328,7 @@ class Typer extends Namer with TypeAssigner with Applications with Implicits wit
       val tpt1 = typedType(tree.tpt)
       val expr1 =
         if (isWildcard) tree.expr withType tpt1.tpe
-        else typedExpr(tree.expr, tpt1.tpe)
+        else typed(tree.expr, tpt1.tpe)
       assignType(cpy.Typed(tree, expr1, tpt1), tpt1)
     }
     tree.expr match {
@@ -957,7 +957,7 @@ class Typer extends Namer with TypeAssigner with Applications with Implicits wit
     }
   }
 
-  def typed(tree: untpd.Tree, pt: Type = WildcardType)(implicit ctx: Context): Tree = /*>|>*/ ctx.traceIndented (i"typing $tree", typr, show = true) /*<|<*/ {
+  def typed(tree: untpd.Tree, pt: Type = WildcardType)(implicit ctx: Context): Tree = /*>|>*/ ctx.traceIndented (i"typing $tree, patternMode = ${ctx.mode is Mode.Pattern}", typr, show = true) /*<|<*/ {
     assertPositioned(tree)
     try adapt(typedUnadapted(tree, pt), pt, tree)
     catch {
diff --git a/tests/new/t2660.scala b/tests/new/t2660.scala
new file mode 100644
index 000000000..94a40f740
--- /dev/null
+++ b/tests/new/t2660.scala
@@ -0,0 +1,25 @@
+package hoho
+
+class G
+
+class H extends G
+
+class A[T](x: T) {
+
+  def this(y: G, z: T) = {
+    this(z)
+    print(1)
+  }
+
+  def this(z: H, h: T) = {
+    this(h)
+    print(2)
+  }
+}
+
+object T {
+  def main(args: Array[String]): Unit = {
+    implicit def g2h(g: G): H = new H
+    new A[Int](new H, 23)
+  }
+}
diff --git a/tests/pending/pos/tuplePatDef.scala b/tests/pending/pos/tuplePatDef.scala
new file mode 100644
index 000000000..978052991
--- /dev/null
+++ b/tests/pending/pos/tuplePatDef.scala
@@ -0,0 +1,4 @@
+
+object Test {
+  val (x,y): (String, M) = null
+}