Unstuck the compiler.

Author: andersio

ReactiveSwift.xcodeproj/project.pbxproj

@@ -1305,6 +1305,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.reactivecocoa.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(PROJECT_NAME)";
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
 				SWIFT_VERSION = 3.0;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -1412,6 +1413,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.reactivecocoa.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(PROJECT_NAME)";
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
 				SWIFT_VERSION = 3.0;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VERSIONING_SYSTEM = "apple-generic";