Reflection: More robust typeref_decoding_objc test

Go through some pains to ensure that we emit an override for
the default initializer, since otherwise we emit a fatalError()
call which ends up creating some closures.

The exact order of the closures changed between master and
swift-3.0-preview-1-branch. It is better not to test this
part at all.

Author: slavapestov

test/Reflection/Inputs/ObjectiveCTypes.swift

@@ -2,26 +2,15 @@ import Foundation
 import CoreGraphics
 
 public class OC : NSObject {
-  public let nsObject: NSObject
-  public let nsString: NSString
-  public let cfString: CFString
-  public let aBlock: @convention(block) () -> ()
-  public init(nsObject: NSObject, nsString: NSString, cfString: CFString,
-              aBlock: @convention(block) () -> ()) {
-    self.nsObject = nsObject
-    self.nsString = nsString
-    self.cfString = cfString
-    self.aBlock = aBlock
-  }
+  public let nsObject: NSObject = NSObject()
+  public let nsString: NSString = ""
+  public let cfString: CFString = ""
+  public let aBlock: @convention(block) () -> () = {}
+  public let ocnss: GenericOC<NSString> = GenericOC()
+  public let occfs: GenericOC<CFString> = GenericOC()
 }
 
 public class GenericOC<T> : NSObject {
-  public let ocnss: GenericOC<NSString>
-  public let occfs: GenericOC<CFString>
-  public init(nss: GenericOC<NSString>, cfs: GenericOC<CFString>) {
-    self.ocnss = nss
-    self.occfs = cfs
-  }
 }
 
 public class HasObjCClasses {

test/Reflection/typeref_decoding_objc.swift

@@ -20,8 +20,6 @@
 // CHECK: (function convention=block
 // CHECK:   (tuple))
 
-// CHECK: TypesToReflect.GenericOC
-// CHECK: ------------------------
 // CHECK: ocnss: TypesToReflect.GenericOC<__ObjC.NSString>
 // CHECK: (bound_generic_class TypesToReflect.GenericOC
 // CHECK:   (class __ObjC.NSString))
@@ -30,6 +28,9 @@
 // CHECK: (bound_generic_class TypesToReflect.GenericOC
 // CHECK:   (class __ObjC.CFString))
 
+// CHECK: TypesToReflect.GenericOC
+// CHECK: ------------------------
+
 // CHECK: TypesToReflect.HasObjCClasses
 // CHECK: -----------------------------
 // CHECK: url: __ObjC.NSURL
@@ -60,65 +61,16 @@
 // CHECK-32: Stride: 16
 // CHECK-32: NumExtraInhabitants: 0
 
+// CHECK-64: - __C.CGRect:
 // CHECK-64: Size: 32
 // CHECK-64: Alignment: 8
 // CHECK-64: Stride: 32
 // CHECK-64: NumExtraInhabitants: 0
 
-// CHECK: CAPTURE DESCRIPTORS:
-// CHECK: ====================
-// CHECK: - Capture types:
-// CHECK: (struct Swift.StaticString)
-// CHECK: (struct Swift.StaticString)
-// CHECK: (struct Swift.UInt)
-// CHECK: (struct Swift.UInt)
-// CHECK: - Metadata sources:
-
-// CHECK: - Capture types:
-// CHECK: (function
-// CHECK:   (tuple))
-// CHECK: - Metadata sources:
-
-// CHECK: - Capture types:
-// CHECK: (struct Swift.StaticString)
-// CHECK: (struct Swift.StaticString)
-// CHECK: (struct Swift.UInt)
-// CHECK: (struct Swift.UInt)
-// CHECK: - Metadata sources:
+// CHECK:      CAPTURE DESCRIPTORS:
+// CHECK-NEXT: ====================
 
-// CHECK: - Capture types:
-// CHECK: (function
-// CHECK:   (tuple))
-// CHECK: - Metadata sources:
-
-// CHECK: - Capture types:
-// CHECK: (class __ObjC.NSBundle)
-// CHECK: (protocol __ObjC.NSCoding)
-// CHECK: - Metadata sources:
-
-// CHECK: - Capture types:
-// CHECK: (struct Swift.StaticString)
-// CHECK: (bound_generic_struct Swift.UnsafeBufferPointer
-// CHECK:   (struct Swift.UInt8))
-// CHECK: (struct Swift.UInt)
-// CHECK: (struct Swift.UInt)
-// CHECK: - Metadata sources:
-
-// CHECK: - Capture types:
-// CHECK: (function
-// CHECK:   (tuple))
-// CHECK: - Metadata sources:
-
-// CHECK: - Capture types:
-// CHECK: (bound_generic_struct Swift.UnsafeBufferPointer
-// CHECK:   (struct Swift.UInt8))
-// CHECK: (bound_generic_struct Swift.UnsafeBufferPointer
-// CHECK:   (struct Swift.UInt8))
-// CHECK: (struct Swift.UInt)
-// CHECK: (struct Swift.UInt)
-// CHECK: - Metadata sources:
-
-// CHECK: - Capture types:
-// CHECK: (function
-// CHECK:   (tuple))
-// CHECK: - Metadata sources:
+// CHECK:      - Capture types:
+// CHECK-NEXT: (class __ObjC.NSBundle)
+// CHECK-NEXT: (protocol __ObjC.NSCoding)
+// CHECK-NEXT: - Metadata sources: