Fix an infinite loop parsing in CPDF_SyntaxParser::GetObject()

fpdfsdk/src/fpdfview_embeddertest.cpp

Index: fpdfsdk/src/fpdfview_embeddertest.cpp
diff --git a/fpdfsdk/src/fpdfview_embeddertest.cpp b/fpdfsdk/src/fpdfview_embeddertest.cpp
index 6a6d0769830f2633796b14d405c720f9f3385f70..4857bb938f0de46f49b88d869ed9d02297df944b 100644
--- a/fpdfsdk/src/fpdfview_embeddertest.cpp
+++ b/fpdfsdk/src/fpdfview_embeddertest.cpp
@@ -221,4 +221,10 @@ TEST_F(FPDFViewEmbeddertest, CrossRefV4Loop) {
 // cause infinite loop.
 TEST_F(FPDFViewEmbeddertest, Hang_343) {
   EXPECT_FALSE(OpenDocument("bug_343.pdf"));
+}
+
+// The test should pass when circular references to ParseIndirectObject will not

[Lei Zhang, 2016/01/11 19:55:03]

Does this description need to be updated?

[Wei Li, 2016/01/11 21:07:20]

Done.

+// cause infinite loop.
+TEST_F(FPDFViewEmbeddertest, Hang_344) {
+  EXPECT_FALSE(OpenDocument("bug_344.pdf"));
 }