SI-9127 Xlint doesn't think spaces are significant

For purposes of warning about missing interpolators,
such as `"$greeting"` when the intended code was `s"$greeting"`,
spaces are no longer significant.

The heuristic was previously intended to allow compileresque
strings, where the dollar sign is a common prefix.

Currently, the Xlint warning can be selectively disabled.

1 files changed, 7 insertions, 0 deletions

diff --git a/test/files/neg/t9127.scala b/test/files/neg/t9127.scala
new file mode 100644
index 0000000000..c0746144eb
--- /dev/null
+++ b/test/files/neg/t9127.scala
@@ -0,0 +1,7 @@
+
+trait X {
+  val s = "hello"
+  val t = "$s"
+  val u = "a${s}b"
+  val v = "a$s b"
+}