stdlib tests: add import statements to prevent unresolved symbols when compiling StdlibUnittest with -sil-serialize-all.

rdar://problem/18917405

Author: eeckstein

test/1_stdlib/ArrayTraps.swift.gyb

@@ -12,6 +12,13 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This is
+// needed to link all required libraries in case we serialize StdlibUnittest.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 %{
 # We test for bounds-checking traps for both reading and writing
 # both single elements and slices of all three different array

test/1_stdlib/CharacterTraps.swift

@@ -9,6 +9,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This is
+// needed to link all required libraries in case we serialize StdlibUnittest.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
+
 var CharacterTraps = TestSuite("CharacterTraps")
 
 CharacterTraps.test("CharacterFromEmptyString")

test/1_stdlib/DictionaryTraps.swift

@@ -13,6 +13,13 @@
 import StdlibUnittest
 import Foundation
 
+// Also import modules which are used by StdlibUnittest internally. This is
+// needed to link all required libraries in case we serialize StdlibUnittest.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 struct NotBridgedKeyTy : Equatable, Hashable {
   init(_ value: Int) {
     self.value = value

test/1_stdlib/DictionaryUnchecked.swift

@@ -6,6 +6,13 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This is
+// needed to link all required libraries in case we serialize StdlibUnittest.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var DictionaryUnchecked = TestSuite("DictionaryUnchecked")
 
 DictionaryUnchecked.test("noCseOnInit") {

test/1_stdlib/Index.swift.gyb

@@ -18,6 +18,13 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This is
+// needed to link all required libraries in case we serialize StdlibUnittest.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 struct DistanceToTest {
   let startIndex: Int
   let endIndex: Int

test/1_stdlib/IntervalTraps.swift

@@ -20,6 +20,13 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This is
+// needed to link all required libraries in case we serialize StdlibUnittest.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var IntervalTraps = TestSuite("IntervalTraps")
 
 IntervalTraps.test("HalfOpen")

test/1_stdlib/OptionalTraps.swift

@@ -11,6 +11,13 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This is
+// needed to link all required libraries in case we serialize StdlibUnittest.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 func returnNil() -> AnyObject? {
   return _opaqueIdentity(nil as AnyObject?)
 }

test/1_stdlib/RangeTraps.swift

@@ -20,6 +20,13 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This is
+// needed to link all required libraries in case we serialize StdlibUnittest.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var RangeTraps = TestSuite("RangeTraps")
 
 RangeTraps.test("HalfOpen")

test/1_stdlib/SetTraps.swift

@@ -13,6 +13,13 @@
 import StdlibUnittest
 import Foundation
 
+// Also import modules which are used by StdlibUnittest internally. This is
+// needed to link all required libraries in case we serialize StdlibUnittest.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 struct NotBridgedKeyTy : Equatable, Hashable {
   init(_ value: Int) {
     self.value = value

test/1_stdlib/StringTraps.swift

@@ -12,6 +12,13 @@
 import StdlibUnittest
 import Foundation
 
+// Also import modules which are used by StdlibUnittest internally. This is
+// needed to link all required libraries in case we serialize StdlibUnittest.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var StringTraps = TestSuite("StringTraps")
 
 StringTraps.test("startIndex/predecessor")