expand tests for missing repeat

Author: sophiapoirier

test/type/pack_expansion.swift

@@ -78,6 +78,18 @@ func invalidPackRefRepeatInt(_: repeat Int) {}
 // expected-error@+1 {{pack reference 'T' requires expansion using keyword 'repeat'}}
 func packRefOutsideExpansion<each T>(_: each T) {}
 
+// expected-error@+1 {{pack reference 'T' requires expansion using keyword 'repeat'}}
+func packRefOutsideExpansion<each T>(_: Array<each T>) {}
+
+// expected-error@+1 {{pack reference 'T' requires expansion using keyword 'repeat'}}
+func packRefOutsideExpansion<each T>(_: Array<(each T) -> ()>) {}
+
+// expected-error@+1 {{pack reference 'T' requires expansion using keyword 'repeat'}}
+func packRefOutsideExpansion<each T>(_: (each T)) {}
+
+// expected-error@+1 {{pack reference 'T' requires expansion using keyword 'repeat'}}
+func packRefOutsideExpansion<each T>(_: each T.Type) {}
+
 // coverage to ensure a 'repeat each' type is considered Copyable
 func golden<Z>(_ z: Z) {}
 func hour<each T>(_ t: repeat each T)  {