Index: clang/include/clang/AST/Stmt.h
===================================================================
--- clang/include/clang/AST/Stmt.h
+++ clang/include/clang/AST/Stmt.h
@@ -1188,6 +1188,11 @@
                        child_iterator(DG.end(), DG.end()));
   }
 
+  const_child_range children() const {
+    auto Children = const_cast<DeclStmt *>(this)->children();
+    return const_child_range(Children.begin(), Children.end());
+  }
+
   using decl_iterator = DeclGroupRef::iterator;
   using const_decl_iterator = DeclGroupRef::const_iterator;
   using decl_range = llvm::iterator_range<decl_iterator>;
@@ -1245,6 +1250,10 @@
   child_range children() {
     return child_range(child_iterator(), child_iterator());
   }
+
+  const_child_range children() const {
+    return const_child_range(const_child_iterator(), const_child_iterator());
+  }
 };
 
 /// CompoundStmt - This represents a group of statements like { stmt stmt }.
@@ -1549,6 +1558,12 @@
                        getTrailingObjects<Stmt *>() +
                            numTrailingObjects(OverloadToken<Stmt *>()));
   }
+
+  const_child_range children() const {
+    return const_child_range(getTrailingObjects<Stmt *>(),
+                             getTrailingObjects<Stmt *>() +
+                                 numTrailingObjects(OverloadToken<Stmt *>()));
+  }
 };
 
 class DefaultStmt : public SwitchCase {
@@ -1580,6 +1595,10 @@
 
   // Iterators
   child_range children() { return child_range(&SubStmt, &SubStmt + 1); }
+
+  const_child_range children() const {
+    return const_child_range(&SubStmt, &SubStmt + 1);
+  }
 };
 
 SourceLocation SwitchCase::getEndLoc() const {
@@ -1654,6 +1673,10 @@
 
   child_range children() { return child_range(&SubStmt, &SubStmt + 1); }
 
+  const_child_range children() const {
+    return const_child_range(&SubStmt, &SubStmt + 1);
+  }
+
   static bool classof(const Stmt *T) {
     return T->getStmtClass() == LabelStmtClass;
   }
@@ -1711,6 +1734,10 @@
 
   child_range children() { return child_range(&SubStmt, &SubStmt + 1); }
 
+  const_child_range children() const {
+    return const_child_range(&SubStmt, &SubStmt + 1);
+  }
+
   static bool classof(const Stmt *T) {
     return T->getStmtClass() == AttributedStmtClass;
   }
@@ -1910,6 +1937,12 @@
                            numTrailingObjects(OverloadToken<Stmt *>()));
   }
 
+  const_child_range children() const {
+    return const_child_range(getTrailingObjects<Stmt *>(),
+                             getTrailingObjects<Stmt *>() +
+                                 numTrailingObjects(OverloadToken<Stmt *>()));
+  }
+
   static bool classof(const Stmt *T) {
     return T->getStmtClass() == IfStmtClass;
   }
@@ -2087,6 +2120,12 @@
                            numTrailingObjects(OverloadToken<Stmt *>()));
   }
 
+  const_child_range children() const {
+    return const_child_range(getTrailingObjects<Stmt *>(),
+                       getTrailingObjects<Stmt *>() +
+                           numTrailingObjects(OverloadToken<Stmt *>()));
+  }
+
   static bool classof(const Stmt *T) {
     return T->getStmtClass() == SwitchStmtClass;
   }
@@ -2212,6 +2251,12 @@
                        getTrailingObjects<Stmt *>() +
                            numTrailingObjects(OverloadToken<Stmt *>()));
   }
+
+  const_child_range children() const {
+    return const_child_range(getTrailingObjects<Stmt *>(),
+                             getTrailingObjects<Stmt *>() +
+                                 numTrailingObjects(OverloadToken<Stmt *>()));
+  }
 };
 
 /// DoStmt - This represents a 'do/while' stmt.
@@ -2262,6 +2307,10 @@
   child_range children() {
     return child_range(&SubExprs[0], &SubExprs[0] + END_EXPR);
   }
+
+  const_child_range children() const {
+    return const_child_range(&SubExprs[0], &SubExprs[0] + END_EXPR);
+  }
 };
 
 /// ForStmt - This represents a 'for (init;cond;inc)' stmt.  Note that any of
@@ -2331,6 +2380,10 @@
   child_range children() {
     return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
   }
+
+  const_child_range children() const {
+    return const_child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
+  }
 };
 
 /// GotoStmt - This represents a direct goto.
@@ -2366,6 +2419,10 @@
   child_range children() {
     return child_range(child_iterator(), child_iterator());
   }
+
+  const_child_range children() const {
+    return const_child_range(const_child_iterator(), const_child_iterator());
+  }
 };
 
 /// IndirectGotoStmt - This represents an indirect goto.
@@ -2411,6 +2468,8 @@
 
   // Iterators
   child_range children() { return child_range(&Target, &Target + 1); }
+
+  const_child_range children() const { return const_child_range(&Target, &Target + 1); }
 };
 
 /// ContinueStmt - This represents a continue.
@@ -2437,6 +2496,10 @@
   child_range children() {
     return child_range(child_iterator(), child_iterator());
   }
+
+  const_child_range children() const {
+    return const_child_range(const_child_iterator(), const_child_iterator());
+  }
 };
 
 /// BreakStmt - This represents a break.
@@ -2463,6 +2526,10 @@
   child_range children() {
     return child_range(child_iterator(), child_iterator());
   }
+
+  const_child_range children() const {
+    return const_child_range(const_child_iterator(), const_child_iterator());
+  }
 };
 
 /// ReturnStmt - This represents a return, optionally of an expression:
@@ -2547,6 +2614,12 @@
       return child_range(&RetExpr, &RetExpr + 1);
     return child_range(child_iterator(), child_iterator());
   }
+
+  const_child_range children() const {
+    if (RetExpr)
+      return const_child_range(&RetExpr, &RetExpr + 1);
+    return const_child_range(const_child_iterator(), const_child_iterator());
+  }
 };
 
 /// AsmStmt is the base class for GCCAsmStmt and MSAsmStmt.
@@ -2702,6 +2775,10 @@
   child_range children() {
     return child_range(&Exprs[0], &Exprs[0] + NumOutputs + NumInputs);
   }
+
+  const_child_range children() const {
+    return const_child_range(&Exprs[0], &Exprs[0] + NumOutputs + NumInputs);
+  }
 };
 
 /// This represents a GCC inline-assembly statement extension.
@@ -2978,6 +3055,10 @@
   child_range children() {
     return child_range(&Exprs[0], &Exprs[NumInputs + NumOutputs]);
   }
+
+  const_child_range children() const {
+    return const_child_range(&Exprs[0], &Exprs[NumInputs + NumOutputs]);
+  }
 };
 
 class SEHExceptStmt : public Stmt {
@@ -3015,6 +3096,10 @@
     return child_range(Children, Children+2);
   }
 
+  const_child_range children() const {
+    return const_child_range(Children, Children+2);
+  }
+
   static bool classof(const Stmt *T) {
     return T->getStmtClass() == SEHExceptStmtClass;
   }
@@ -3046,6 +3131,10 @@
     return child_range(&Block,&Block+1);
   }
 
+  const_child_range children() const {
+    return const_child_range(&Block, &Block+1);
+  }
+
   static bool classof(const Stmt *T) {
     return T->getStmtClass() == SEHFinallyStmtClass;
   }
@@ -3094,6 +3183,10 @@
     return child_range(Children, Children+2);
   }
 
+  const_child_range children() const {
+    return const_child_range(Children, Children+2);
+  }
+
   static bool classof(const Stmt *T) {
     return T->getStmtClass() == SEHTryStmtClass;
   }
@@ -3124,6 +3217,10 @@
   child_range children() {
     return child_range(child_iterator(), child_iterator());
   }
+
+  const_child_range children() const {
+    return const_child_range(const_child_iterator(), const_child_iterator());
+  }
 };
 
 /// This captures a statement into a function. For example, the following
@@ -3344,6 +3441,8 @@
   }
 
   child_range children();
+
+  const_child_range children() const;
 };
 
 } // namespace clang
Index: clang/lib/AST/Stmt.cpp
===================================================================
--- clang/lib/AST/Stmt.cpp
+++ clang/lib/AST/Stmt.cpp
@@ -1254,6 +1254,10 @@
   return child_range(getStoredStmts(), getStoredStmts() + NumCaptures);
 }
 
+Stmt::const_child_range CapturedStmt::children() const {
+  return const_child_range(getStoredStmts(), getStoredStmts() + NumCaptures);
+}
+
 CapturedDecl *CapturedStmt::getCapturedDecl() {
   return CapDeclAndKind.getPointer();
 }