versioner: introduce.
Add a clang-based tool to inspect header availability attributes and
verify them against the NDK platform definitions.
Bug: http://b/28178111
Change-Id: I1bb1925a620e98cc9606cb5a3360b1224c700bd0
diff --git a/tools/versioner/tests/missing_arch/expected_fail b/tools/versioner/tests/missing_arch/expected_fail
new file mode 100644
index 0000000..56de9d9
--- /dev/null
+++ b/tools/versioner/tests/missing_arch/expected_fail
@@ -0,0 +1,2 @@
+foo: declaration marked available but symbol missing in [x86-9]
+versioner: version check failed