8 files changed, 23 insertions, 2 deletions
diff --git a/test/files/neg/t10097.check b/test/files/neg/t10097.check
index dc81bae0fa..1f70546b57 100644
--- a/test/files/neg/t10097.check
+++ b/test/files/neg/t10097.check
@@ -1,9 +1,9 @@
 t10097.scala:2: error: case classes must have a non-implicit parameter list; try 'case class C()(...)'
 case class C(implicit val c: Int)
-                                 ^
+            ^
 t10097.scala:4: error: case classes must have a non-implicit parameter list; try 'case class D()(...)(...)'
 case class D(implicit c: Int)(s: String)
-                                        ^
+            ^
 t10097.scala:4: error: an implicit parameter section must be last
 case class D(implicit c: Int)(s: String)
              ^
diff --git a/test/files/neg/t10097.flags b/test/files/neg/t10097.flags
new file mode 100644
index 0000000000..714bbf5125
--- /dev/null
+++ b/test/files/neg/t10097.flags
@@ -0,0 +1 @@
+-Xsource:2.13
diff --git a/test/files/neg/t10097b.check b/test/files/neg/t10097b.check
new file mode 100644
index 0000000000..14535fee34
--- /dev/null
+++ b/test/files/neg/t10097b.check
@@ -0,0 +1,6 @@
+t10097b.scala:2: warning: case classes should have a non-implicit parameter list; adapting to 'case class C()(...)'
+case class C(implicit val c: Int)
+            ^
+error: No warnings can be incurred under -Xfatal-warnings.
+one warning found
+one error found
diff --git a/test/files/neg/t10097b.flags b/test/files/neg/t10097b.flags
new file mode 100644
index 0000000000..c6bfaf1f64
--- /dev/null
+++ b/test/files/neg/t10097b.flags
@@ -0,0 +1 @@
+-deprecation -Xfatal-warnings
diff --git a/test/files/neg/t10097b.scala b/test/files/neg/t10097b.scala
new file mode 100644
index 0000000000..f166db6792
--- /dev/null
+++ b/test/files/neg/t10097b.scala
@@ -0,0 +1,3 @@
+
+case class C(implicit val c: Int)
+
diff --git a/test/files/run/t10097.check b/test/files/run/t10097.check
new file mode 100644
index 0000000000..0e8b96061c
--- /dev/null
+++ b/test/files/run/t10097.check
@@ -0,0 +1,3 @@
+t10097.scala:2: warning: case classes should have a non-implicit parameter list; adapting to 'case class C()(...)'
+case class C(implicit c: Int)
+            ^
diff --git a/test/files/run/t10097.flags b/test/files/run/t10097.flags
new file mode 100644
index 0000000000..dcc59ebe32
--- /dev/null
+++ b/test/files/run/t10097.flags
@@ -0,0 +1 @@
+-deprecation
diff --git a/test/files/run/t10097.scala b/test/files/run/t10097.scala
new file mode 100644
index 0000000000..a16be897cc
--- /dev/null
+++ b/test/files/run/t10097.scala
@@ -0,0 +1,6 @@
+
+case class C(implicit c: Int)
+
+object Test extends App {
+  assert(C()(42).productArity == 0)
+}