Update tests and additional fixups.

vendor/github.com/stretchr/objx/.codeclimate.yml

@@ -1,21 +0,0 @@
-engines:
-  gofmt:
-    enabled: true
-  golint:
-    enabled: true
-  govet:
-    enabled: true
-
-exclude_patterns:
-- ".github/"
-- "vendor/"
-- "codegen/"
-- "*.yml"
-- ".*.yml"
-- "*.md"
-- "Gopkg.*"
-- "doc.go"
-- "type_specific_codegen_test.go"
-- "type_specific_codegen.go"
-- ".gitignore"
-- "LICENSE"