fixing tests for defaults when pointer is imported

Author: Omar Habra

test/Interop/Cxx/templates/defaulted-template-type-parameter-module-interface.swift

@@ -17,6 +17,6 @@
 // CHECK: func defaultedTemplateReferenceTypeParam<T>(_ t: UnsafeMutablePointer<T>)
 // The following types aren't imported correctly, but that does not have to do
 // with the fact that the template type paramaters are defaulted.
-// CHECK: func defaultedTemplatePointerTypeParam<T>(_ t: OpaquePointer!)
+// CHECK: func defaultedTemplatePointerTypeParam<T>(_ t: UnsafeMutablePointer<T>)
 // CHECK: func defaultedTemplatePointerReferenceTypeParam<T>(_ t: inout OpaquePointer!)
 // CHECK: func defaultedTemplatePointerPointerTypeParam<T>(_ t: UnsafeMutablePointer<OpaquePointer?>!)