Add run test for infix operator starting at newline

liufengyun · liufengyun · commit 9430354ca2df · 2019-08-25T19:56:05.000+02:00
The behavior is not covered by the tests in #7031
diff --git a/tests/run/i7031.scala b/tests/run/i7031.scala
@@ -0,0 +1,9 @@
+@main def Test = {
+  val a = 5
+  val x = 1
+    + //
+    `a` * 6
+
+  assert(x == 1)
+}
+
