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-rw-r--r--testsuite/tests/typecheck/should_compile/T15586.hs12
-rw-r--r--testsuite/tests/typecheck/should_compile/all.T1
2 files changed, 13 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_compile/T15586.hs b/testsuite/tests/typecheck/should_compile/T15586.hs
new file mode 100644
index 0000000000..e8fd4f3bd2
--- /dev/null
+++ b/testsuite/tests/typecheck/should_compile/T15586.hs
@@ -0,0 +1,12 @@
+{-# LANGUAGE GADTs #-}
+
+module STree where
+
+data STree a where
+ STreeIM :: {
+ l :: v a ,
+ stree :: a
+ } -> STree a
+
+insert :: STree a -> STree a
+insert s = s { stree = undefined }
diff --git a/testsuite/tests/typecheck/should_compile/all.T b/testsuite/tests/typecheck/should_compile/all.T
index 64df3a89d4..c3a90ee24c 100644
--- a/testsuite/tests/typecheck/should_compile/all.T
+++ b/testsuite/tests/typecheck/should_compile/all.T
@@ -649,3 +649,4 @@ test('T15412', normal, compile, [''])
test('T15141', normal, compile, [''])
test('T15473', normal, compile_fail, [''])
test('T15499', normal, compile, [''])
+test('T15586', normal, compile, [''])