Preserve error message during finally block in try..finally.

src/full-codegen.cc

Index: src/full-codegen.cc
diff --git a/src/full-codegen.cc b/src/full-codegen.cc
index 9b1df4ee735dd314b94ac3ee0101dd43cd1eebcb..4ddc0ae5c8ab936611ba55f98b5867721ce2b4ac 100644
--- a/src/full-codegen.cc
+++ b/src/full-codegen.cc
@@ -1287,7 +1287,11 @@ void FullCodeGenerator::VisitTryFinallyStatement(TryFinallyStatement* stmt) {
   // is thrown.  The exception is in the result register, and must be
   // preserved by the finally block.  Call the finally block and then
   // rethrow the exception if it returns.
+  // Preserve the pending message corresponding to the thrown error when
+  // executing the finally block.
+  SavePendingMessage();
   __ Call(&finally_entry);
+  RestorePendingMessage();
   __ push(result_register());
   __ CallRuntime(Runtime::kReThrow, 1);