SI-5779: Wrong warning message (comparing values of types Float/Double and Number using `==' will always yield false)

BoxesRuntime knows how to compare java.lang.Number, so we must not warn.

1 files changed, 13 insertions, 0 deletions

diff --git a/test/files/pos/t5779-numeq-warn.scala b/test/files/pos/t5779-numeq-warn.scala
new file mode 100644
index 0000000000..76ef2970fd
--- /dev/null
+++ b/test/files/pos/t5779-numeq-warn.scala
@@ -0,0 +1,13 @@
+
+object Test {
+  def main(args: Array[String]) {
+    val d: Double = (BigInt(1) << 64).toDouble
+    val f: Float = d.toFloat
+    val n: java.lang.Number = d.toFloat
+    assert (d == f)   // ok
+    assert (d == n)   // was: comparing values of types Double and Number using `==' will always yield false
+    assert (n == d)   // was: Number and Double are unrelated: they will most likely never compare equal
+    assert (f == n)
+    assert (n == f)
+  }
+}