PP: Fix issue #426, recover from bad-source macro expansion.
diff --git a/gtests/AST.FromFile.cpp b/gtests/AST.FromFile.cpp
index 7070533..d8a5ef9 100644
--- a/gtests/AST.FromFile.cpp
+++ b/gtests/AST.FromFile.cpp
@@ -79,6 +79,7 @@
         "cppIndent.vert",
         "cppNest.vert",
         "cppBad.vert",
+        "cppBad2.vert",
         "cppComplexExpr.vert",
         "badChars.frag",
         "pointCoord.frag",