ASTDumper: fix dump of CXXCatchStmt

Summary: I added the display of the VarDecl contained in the statement.

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1596

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189941 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTDumper.cpp b/lib/AST/ASTDumper.cpp
index dfd4640..2e71749 100644
--- a/lib/AST/ASTDumper.cpp
+++ b/lib/AST/ASTDumper.cpp
@@ -249,6 +249,7 @@
     void VisitAttributedStmt(const AttributedStmt *Node);
     void VisitLabelStmt(const LabelStmt *Node);
     void VisitGotoStmt(const GotoStmt *Node);
+    void VisitCXXCatchStmt(const CXXCatchStmt *Node);
 
     // Exprs
     void VisitExpr(const Expr *Node);
@@ -1461,6 +1462,11 @@
   dumpPointer(Node->getLabel());
 }
 
+void ASTDumper::VisitCXXCatchStmt(const CXXCatchStmt *Node) {
+  VisitStmt(Node);
+  dumpDecl(Node->getExceptionDecl());
+}
+
 //===----------------------------------------------------------------------===//
 //  Expr dumping methods.
 //===----------------------------------------------------------------------===//