Add test case for parsing endobj keywords.

testing/resources/pixel/endobj12.in

Index: testing/resources/pixel/endobj12.in
diff --git a/testing/resources/hello_world.in b/testing/resources/pixel/endobj12.in
similarity index 71%
copy from testing/resources/hello_world.in
copy to testing/resources/pixel/endobj12.in
index 19fce0ce335de77ea31e295a87025eb52f65110e..1a89b316506cdde8f977a0bc92f3173fb15ff7ce 100644
--- a/testing/resources/hello_world.in
+++ b/testing/resources/pixel/endobj12.in
@@ -34,19 +34,28 @@ endobj
   /BaseFont /Helvetica
 >>
 endobj
+% Case 11:
+%   /Length points well past intended end of stream, with embedded keywords.
+%   Both should render as text.
 {{object 6 0}} <<
+  /Length 210
 >>
 stream
 BT
 20 50 Td
 /F1 12 Tf
-(Hello, world!) Tj
+(endobj is text) Tj
 0 50 Td
-/F2 16 Tf
-(Goodbye, world!) Tj
+/F2 13 Tf
+(endstream is text per /Length) Tj
 ET
 endstream
 endobj
+
+% blah blah blah.
+% blah blah blah.
+% blah blah blah.
+
 {{xref}}
 trailer <<
   /Size 6