Fix php well known type conformance tests (#3828) (#3840)

* Fix php well known type conformance tests

* Properly generate code for test.proto

* Provide GPBMetadata files in c extensions for generated files to import.

* Remove unnecessary test

* Clean up code

* Add declaration for initOnce.

* Refactoring

1 files changed, 2 insertions, 1 deletions

diff --git a/tests.sh b/tests.sh
index 66baeb15..6733e835 100755
--- a/tests.sh
+++ b/tests.sh
@@ -363,7 +363,8 @@ generate_php_test_proto() {
     proto/test_service_namespace.proto         \
     proto/test_descriptors.proto
   pushd ../../src
-  ./protoc --php_out=../php/tests/generated -I../php/tests -I. ../php/tests/proto/test_import_descriptor_proto.proto
+  ./protoc --php_out=../php/tests/generated -I../php/tests -I. \
+    ../php/tests/proto/test_import_descriptor_proto.proto
   popd
   popd
 }