Partial AST and Sema support for C++ try-catch.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61337 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/StmtSerialization.cpp b/lib/AST/StmtSerialization.cpp
index d12ecd0..2d6f755 100644
--- a/lib/AST/StmtSerialization.cpp
+++ b/lib/AST/StmtSerialization.cpp
@@ -242,6 +242,9 @@
 
     case CXXDependentNameExprClass:
       return CXXDependentNameExpr::CreateImpl(D, C);
+
+    case CXXCatchStmtClass:
+      return CXXCatchStmt::CreateImpl(D, C);
   }
 }
 
@@ -1523,3 +1526,17 @@
   SourceLocation L = SourceLocation::ReadVal(D);
   return new CXXDependentNameExpr(N, Ty, L);
 }
+
+void CXXCatchStmt::EmitImpl(llvm::Serializer& S) const {
+  S.Emit(CatchLoc);
+  S.EmitOwnedPtr(ExceptionDecl);
+  S.EmitOwnedPtr(HandlerBlock);
+}
+
+CXXCatchStmt *
+CXXCatchStmt::CreateImpl(llvm::Deserializer& D, ASTContext& C) {
+  SourceLocation CatchLoc = SourceLocation::ReadVal(D);
+  Decl *ExDecl = D.ReadOwnedPtr<Decl>(C);
+  Stmt *HandlerBlock = D.ReadOwnedPtr<Stmt>(C);
+  return new CXXCatchStmt(CatchLoc, ExDecl, HandlerBlock);
+}