SR-11889: Located added dump methods

Author: kitaisreal

include/swift/Basic/Located.h

@@ -18,6 +18,8 @@
 
 #ifndef SWIFT_BASIC_LOCATED_H
 #define SWIFT_BASIC_LOCATED_H
+#include "swift/Basic/Debug.h"
+#include "swift/Basic/LLVM.h"
 #include "swift/Basic/SourceLoc.h"
 
 namespace swift {
@@ -41,11 +43,15 @@ struct Located {
 
   Located(T Item, SourceLoc loc): Item(Item), Loc(loc) {}
 
+  SWIFT_DEBUG_DUMP;
+  void dump(raw_ostream &os) const;
+
   template<typename U>
   friend bool operator ==(const Located<U>& lhs, const Located<U>& rhs) {
     return lhs.Item == rhs.Item && lhs.Loc == rhs.Loc;
   }
 };
-}
+
+} // end namespace swift
 
 #endif // SWIFT_BASIC_LOCATED_H

lib/Basic/CMakeLists.txt

@@ -77,6 +77,7 @@ add_swift_host_library(swiftBasic STATIC
   JSONSerialization.cpp
   LangOptions.cpp
   LLVMContext.cpp
+  Located.cpp
   Mangler.cpp
   OutputFileMap.cpp
   Platform.cpp

lib/Basic/Located.cpp

@@ -0,0 +1,24 @@
+//===--- Located.cpp - Source Location and Associated Value ----------*- C++ -*-===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2019 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+//
+#include "llvm/Support/raw_ostream.h"
+#include "swift/Basic/Located.h"
+
+using namespace swift;
+
+template<typename T>
+void Located<T>::dump() const {
+  dump(llvm::errs());
+}
+
+template<typename T>
+void Located<T>::dump(raw_ostream &os) const {
+  os << Loc << " " << Item;
+}