Fix desugaring of variable pattern leaking into API

This was especially bad for incremental compilation since the temporary
variable name is unstable.

2 files changed, 23 insertions, 0 deletions

diff --git a/tests/run/variable-pattern-access.check b/tests/run/variable-pattern-access.check
new file mode 100644
index 000000000..1039f6a25
--- /dev/null
+++ b/tests/run/variable-pattern-access.check
@@ -0,0 +1,7 @@
+# Fields of A:
+private final int A.a$$local
+private final int A.b$$local
+private final scala.Tuple2 A.$1$
+# Methods of A:
+public int A.a()
+public int A.b()
diff --git a/tests/run/variable-pattern-access.scala b/tests/run/variable-pattern-access.scala
new file mode 100644
index 000000000..1d27b3e42
--- /dev/null
+++ b/tests/run/variable-pattern-access.scala
@@ -0,0 +1,16 @@
+class A {
+  val (a, b) = (1, 2)
+}
+object Test {
+  def printFields(cls: Class[_]) =
+    println(cls.getDeclaredFields.map(_.toString).sorted.deep.mkString("\n"))
+  def printMethods(cls: Class[_]) =
+    println(cls.getDeclaredMethods.map(_.toString).sorted.deep.mkString("\n"))
+
+  def main(args: Array[String]): Unit = {
+    println("# Fields of A:")
+    printFields(classOf[A])
+    println("# Methods of A:")
+    printMethods(classOf[A])
+  }
+}