adds test for case presented in #2634

tests/run/embedsignatures.pyx

@@ -428,6 +428,7 @@ cdef class Foo:
     def m28(self, a: list(range(3))[::1]): pass
     def m29(self, a: list(range(3))[0:1:1]): pass
     def m30(self, a: list(range(3))[7, 3:2:1, ...]): pass
+    def m31(self, double[::1] a): pass
 
 __doc__ += ur"""
 >>> print(Foo.m00.__doc__)
@@ -522,4 +523,7 @@ Foo.m29(self, a: list(range(3))[0:1:1])
 
 >>> print(Foo.m30.__doc__)
 Foo.m30(self, a: list(range(3))[7, 3:2:1, ...])
+
+>>> print(Foo.m31.__doc__)
+Foo.m31(self, double[::1] a)
 """