Add position check for regression introduced by #2957

The starting bound for ValDefs in #2957 is distinct from the expected result, e.g.

[4:9]val x = [8:9]0
instead of
[0:9]val x = [8:9]0

1 files changed, 26 insertions, 0 deletions

diff --git a/test/files/run/position-val-def.scala b/test/files/run/position-val-def.scala
new file mode 100644
index 0000000000..62cb54acf8
--- /dev/null
+++ b/test/files/run/position-val-def.scala
@@ -0,0 +1,26 @@
+import scala.reflect.runtime.universe._
+import scala.reflect.runtime.{universe => ru}
+import scala.reflect.runtime.{currentMirror => cm}
+import scala.tools.reflect.ToolBox
+
+object Test {
+  val toolbox = cm.mkToolBox(options = "-Yrangepos")
+
+  def main(args: Array[String]) {
+    def test(expr: String) {
+      val t = toolbox.parse(expr)
+      println(expr)
+      println(show(t, printPositions = true))
+      println()
+    }
+    val tests = """
+    val x = 0
+    var x = 0
+    val x, y = 0
+    var x, y = 0
+    val (x, y) = 0
+    """
+    val exprs = tests.split("\\n").map(_.trim).filterNot(_.isEmpty)
+    exprs foreach test
+  }
+}