Initial binary compatibility tests for the compiler.

Change-Id: I38d8794bba5aeed4277779d94bfe5c60e4770666
diff --git a/.gitignore b/.gitignore
index 7a9429b..470dd43 100644
--- a/.gitignore
+++ b/.gitignore
@@ -59,6 +59,8 @@
 third_party/benchmarks/santa-tracker.tar.gz
 third_party/benchmarks/wordpress
 third_party/benchmarks/wordpress.tar.gz
+third_party/binary_compatibility_tests/compiler_api_tests.tar.gz
+third_party/binary_compatibility_tests/compiler_api_tests
 third_party/cf_segments
 third_party/cf_segments.tar.gz
 third_party/chrome/*