Move ConflictingNamesTest to lib/go/test

Client: go

Also add missing copyright header for files added in
https://github.com/apache/thrift/pull/2307.
diff --git a/lib/go/test/Makefile.am b/lib/go/test/Makefile.am
index 2f748c6..4be652e 100644
--- a/lib/go/test/Makefile.am
+++ b/lib/go/test/Makefile.am
@@ -46,7 +46,9 @@
 				ConflictNamespaceTestD.thrift \
 				ConflictNamespaceTestSuperThing.thrift \
 				ConflictNamespaceServiceTest.thrift \
-				DuplicateImportsTest.thrift
+				DuplicateImportsTest.thrift \
+				EqualsTest.thrift \
+				ConflictArgNamesTest.thrift
 	mkdir -p gopath/src
 	grep -v list.*map.*list.*map $(THRIFTTEST) | grep -v 'set<Insanity>' > ThriftTest.thrift
 	$(THRIFT) $(THRIFTARGS) -r IncludesTest.thrift
@@ -74,6 +76,7 @@
 	$(THRIFT) $(THRIFTARGS) ConflictNamespaceServiceTest.thrift
 	$(THRIFT) $(THRIFTARGS) -r DuplicateImportsTest.thrift
 	$(THRIFT) $(THRIFTARGS) EqualsTest.thrift
+	$(THRIFT) $(THRIFTARGS) ConflictArgNamesTest.thrift
 	GOPATH=`pwd`/gopath $(GO) get github.com/golang/mock/gomock || true
 	sed -i 's/\"context\"/\"golang.org\/x\/net\/context\"/g' gopath/src/github.com/golang/mock/gomock/controller.go || true
 	GOPATH=`pwd`/gopath $(GO) get github.com/golang/mock/gomock
@@ -99,7 +102,8 @@
 				conflict/context/conflict_service-remote \
 				servicestest/container_test-remote \
 				duplicateimportstest \
-				equalstest
+				equalstest \
+				conflictargnamestest
 	GOPATH=`pwd`/gopath $(GO) test thrift tests dontexportrwtest
 
 clean-local:
@@ -113,6 +117,7 @@
 	tests \
 	common \
 	BinaryKeyTest.thrift \
+	ConflictArgNamesTest.thrift \
 	ConflictNamespaceServiceTest.thrift \
 	ConflictNamespaceTestA.thrift \
 	ConflictNamespaceTestB.thrift \