swift4: Set xcode project to use Swift 4

Author: spevans

Foundation.xcodeproj/project.pbxproj

@@ -2594,15 +2594,15 @@
 					r,
 					r,
 				);
-				OTHER_SWIFT_FLAGS = "-DDEPLOYMENT_ENABLE_LIBDISPATCH -DDEPLOYMENT_RUNTIME_SWIFT -swift-version 3";
+				OTHER_SWIFT_FLAGS = "-DDEPLOYMENT_ENABLE_LIBDISPATCH -DDEPLOYMENT_RUNTIME_SWIFT -swift-version 4";
 				PRODUCT_BUNDLE_IDENTIFIER = org.swift.Foundation;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_INDEX_STORE_ENABLE = NO;
 				SWIFT_INSTALL_OBJC_HEADER = NO;
 				SWIFT_OBJC_INTERFACE_HEADER_NAME = "";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -2667,14 +2667,14 @@
 					r,
 					r,
 				);
-				OTHER_SWIFT_FLAGS = "-DDEPLOYMENT_ENABLE_LIBDISPATCH -DDEPLOYMENT_RUNTIME_SWIFT -swift-version 3";
+				OTHER_SWIFT_FLAGS = "-DDEPLOYMENT_ENABLE_LIBDISPATCH -DDEPLOYMENT_RUNTIME_SWIFT -swift-version 4";
 				PRODUCT_BUNDLE_IDENTIFIER = org.swift.Foundation;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_INDEX_STORE_ENABLE = NO;
 				SWIFT_INSTALL_OBJC_HEADER = NO;
 				SWIFT_OBJC_INTERFACE_HEADER_NAME = "";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
@@ -2716,7 +2716,7 @@
 				PRIVATE_HEADERS_FOLDER_PATH = /usr/local/include/CoreFoundation;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PUBLIC_HEADERS_FOLDER_PATH = /usr/local/include/CoreFoundation;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -2758,7 +2758,7 @@
 				PRIVATE_HEADERS_FOLDER_PATH = /usr/local/include/CoreFoundation;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PUBLIC_HEADERS_FOLDER_PATH = /usr/local/include/CoreFoundation;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
@@ -2778,12 +2778,12 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				LIBRARY_SEARCH_PATHS = "$(inherited)";
 				MACH_O_TYPE = mh_execute;
-				OTHER_SWIFT_FLAGS = "-DDEPLOYMENT_ENABLE_LIBDISPATCH -swift-version 3";
+				OTHER_SWIFT_FLAGS = "-DDEPLOYMENT_ENABLE_LIBDISPATCH -swift-version 4";
 				PRODUCT_BUNDLE_IDENTIFIER = org.swift.TestFoundation;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 				WRAPPER_EXTENSION = app;
 			};
 			name = Debug;
@@ -2804,11 +2804,11 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				LIBRARY_SEARCH_PATHS = "$(inherited)";
 				MACH_O_TYPE = mh_execute;
-				OTHER_SWIFT_FLAGS = "-DDEPLOYMENT_ENABLE_LIBDISPATCH -swift-version 3";
+				OTHER_SWIFT_FLAGS = "-DDEPLOYMENT_ENABLE_LIBDISPATCH -swift-version 4";
 				PRODUCT_BUNDLE_IDENTIFIER = org.swift.TestFoundation;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 				WRAPPER_EXTENSION = app;
 			};
 			name = Release;
@@ -2863,7 +2863,7 @@
 				HEADER_SEARCH_PATHS = "$(CONFIGURATION_BUILD_DIR)/usr/local/include";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -2874,7 +2874,7 @@
 				CLANG_ENABLE_OBJC_ARC = YES;
 				HEADER_SEARCH_PATHS = "$(CONFIGURATION_BUILD_DIR)/usr/local/include";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};