Fix neg tests

Author: odersky

tests/neg/tryPatternMatchEq.scala

@@ -0,0 +1,34 @@
+import java.io.IOException
+import java.lang.NullPointerException
+import java.lang.IllegalArgumentException
+
+object IAE {
+  def unapply(e: Exception): Option[String] =
+    if (e.isInstanceOf[IllegalArgumentException]) Some(e.getMessage)
+    else None
+}
+
+object EX extends Exception
+
+trait ExceptionTrait extends Exception
+
+object Test {
+  def main(args: Array[String]): Unit = {
+    var a: Int = 1
+    try {
+      throw new IllegalArgumentException()
+    } catch {
+      case e: IOException if e.getMessage == null =>
+      case e: NullPointerException =>
+      case e: IndexOutOfBoundsException =>
+      case _: NoSuchElementException =>
+      case _: ExceptionTrait =>
+      case _: NoSuchElementException if a <= 1 =>
+      case _: NullPointerException | _:IOException =>
+      case `a` => // error: cannot compare
+      case EX =>
+      case IAE(msg) =>
+      case e: IllegalArgumentException =>
+    }
+  }
+}

tests/neg/tryPatternMatchError.scala

@@ -25,7 +25,6 @@ object Test {
       case _: ExceptionTrait =>
       case _: NoSuchElementException if a <= 1 =>
       case _: NullPointerException | _:IOException =>
-      case `a` => // This case should probably emmit an error
       case e: Int => // error
       case EX =>
       case IAE(msg) =>