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

This is the second part of 308f39f.
It fixes (better: works-around) linker errors when testing in optimized mode.

Author: eeckstein

test/1_stdlib/CastTraps.swift.gyb

@@ -11,6 +11,15 @@
 // XFAIL: linux
 
 import StdlibUnittest
+
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 import Foundation
 
 

test/1_stdlib/Character.swift

@@ -7,6 +7,13 @@ import StdlibUnittest
 import Swift
 import SwiftPrivate
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 //===---
 // Utilities.
 //===---

test/1_stdlib/ErrorHandling.swift

@@ -7,6 +7,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var NoisyCount = 0
 
 class Noisy {

test/1_stdlib/ErrorType.swift

@@ -3,6 +3,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var ErrorTypeTests = TestSuite("ErrorType")
 
 var NoisyErrorLifeCount = 0

test/1_stdlib/ExistentialCollection.swift

@@ -14,6 +14,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 // Check that the generic parameter is called 'Element'.
 protocol TestProtocol1 {}
 

test/1_stdlib/Experimental.swift

@@ -4,6 +4,14 @@
 import SwiftExperimental
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var ExperimentalTestSuite = TestSuite("Experimental")
 
 ExperimentalTestSuite.test("ComposeOperator/SmokeTest") {

test/1_stdlib/Filter.swift

@@ -14,6 +14,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 let FilterTests = TestSuite("Filter")
 
 // Check that the generic parameter is called 'Base'.

test/1_stdlib/FloatingPoint.swift.gyb

@@ -8,6 +8,14 @@
 import Swift
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 #if arch(i386) || arch(x86_64)
 
 struct Float80Bits : Equatable, CustomStringConvertible {

test/1_stdlib/Generator.swift

@@ -2,6 +2,15 @@
 // REQUIRES: executable_test
 
 import StdlibUnittest
+
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var tests = TestSuite("Generator")
 
 // Check to make sure we are actually getting Optionals out of this

test/1_stdlib/ImplicitlyUnwrappedOptional.swift

@@ -37,6 +37,15 @@ if c === nil {
 // CHECK: an empty class optional should equal nil
 
 import StdlibUnittest
+
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 import Swift
 
 var ImplicitlyUnwrappedOptionalTests = TestSuite("ImplicitlyUnwrappedOptional")

test/1_stdlib/InputStream.swift.gyb

@@ -19,6 +19,15 @@
 // XFAIL: interpret
 
 import StdlibUnittest
+
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 import Swift
 
 var ReadLineTestSuite = TestSuite("ReadLine")

test/1_stdlib/Interval.swift

@@ -16,6 +16,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 // Check that the generic parameter is called 'Bound'.
 protocol TestProtocol1 {}
 

test/1_stdlib/Mirror.swift

@@ -21,6 +21,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var mirrors = TestSuite("Mirrors")
 
 extension Mirror {

test/1_stdlib/NumericParsing.swift.gyb

@@ -47,6 +47,14 @@ number_of_values = 23
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var tests = TestSuite("NumericParsing")
 
 % for type in all_integer_types(word_bits):

test/1_stdlib/OptionSetTest.swift

@@ -30,6 +30,14 @@ struct PackagingOptions : OptionSetType {
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var tests = TestSuite("OptionSet")
 
 tests.test("basics") {

test/1_stdlib/Optional.swift

@@ -4,6 +4,14 @@
 import StdlibUnittest
 import Swift
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 let OptionalTests = TestSuite("Optional")
 
 protocol TestProtocol1 {}

test/1_stdlib/POSIX.swift

@@ -8,6 +8,14 @@ import StdlibUnittest
   import Darwin
 #endif
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var POSIXTests = TestSuite("POSIXTests")
 
 let semaphoreName = "TestSem"

test/1_stdlib/Range.swift

@@ -5,6 +5,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 // Check that the generic parameter is called 'Element'.
 protocol TestProtocol1 {}
 

test/1_stdlib/ReflectionHashing.swift

@@ -11,6 +11,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var Reflection = TestSuite("Reflection")
 
 Reflection.test("Dictionary/Empty") {

test/1_stdlib/StaticString.swift

@@ -3,6 +3,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var StaticStringTestSuite = TestSuite("StaticString")
 
 StaticStringTestSuite.test("PointerRepresentation/ASCII/Empty") {

test/1_stdlib/Strideable.swift

@@ -16,6 +16,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 // Check that the generic parameter is called 'Element'.
 protocol TestProtocol1 {}
 

test/1_stdlib/Unmanaged.swift

@@ -5,6 +5,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 // Check that the generic parameter is called 'Instance'.
 protocol TestProtocol1 {}
 

test/1_stdlib/UnsafePointer.swift.gyb

@@ -5,6 +5,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 protocol TestProtocol1 {}
 
 // Check that the generic parameter is called 'Memory'.

test/1_stdlib/simd.swift.gyb

@@ -11,6 +11,14 @@
 import simd
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 % scalar_types = ['Float', 'Double', 'Int32']
 % float_types = ['Float', 'Double']
 % ctype = { 'Float':'float', 'Double':'double', 'Int32':'int' }

test/Interpreter/FunctionConversion.swift

@@ -16,6 +16,14 @@
 
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 var FunctionConversionTestSuite = TestSuite("FunctionConversion")
 
 protocol Quilt {

test/Interpreter/SDK/Foundation_test.swift

@@ -7,6 +7,14 @@
 import Foundation
 import StdlibUnittest
 
+// Also import modules which are used by StdlibUnittest internally. This
+// workaround is needed to link all required libraries in case we compile
+// StdlibUnittest with -sil-serialize-all.
+import SwiftPrivate
+#if _runtime(_ObjC)
+import ObjectiveC
+#endif
+
 // rdar://problem/18884272
 // Make sure that NSObject conforms to NSObjectProtocol. This
 // particular bug is ridiculously hard to trigger without a complete