Refactor FXIOS-10790 [Swift 6 Migration] Turn on region based isolation at project level (#31043)

SWIFT_UPCOMING_FEATURE_REGION_BASED_ISOLATION

Author: lmarceau

firefox-ios/Client.xcodeproj/project.pbxproj

@@ -27975,6 +27975,7 @@
 				SWIFT_UPCOMING_FEATURE_INFER_SENDABLE_FROM_CAPTURES = YES;
 				SWIFT_UPCOMING_FEATURE_ISOLATED_DEFAULT_VALUES = YES;
 				SWIFT_UPCOMING_FEATURE_NONFROZEN_ENUM_EXHAUSTIVITY = YES;
+				SWIFT_UPCOMING_FEATURE_REGION_BASED_ISOLATION = YES;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "iPhone, iPad";
 				TEST_TARGET_NAME = Client;
@@ -28470,6 +28471,7 @@
 				SWIFT_UPCOMING_FEATURE_INFER_SENDABLE_FROM_CAPTURES = YES;
 				SWIFT_UPCOMING_FEATURE_ISOLATED_DEFAULT_VALUES = YES;
 				SWIFT_UPCOMING_FEATURE_NONFROZEN_ENUM_EXHAUSTIVITY = YES;
+				SWIFT_UPCOMING_FEATURE_REGION_BASED_ISOLATION = YES;
 				VALIDATE_WORKSPACE = YES;
 			};
 			name = Fennec_Testing;
@@ -29755,6 +29757,7 @@
 				SWIFT_UPCOMING_FEATURE_INFER_SENDABLE_FROM_CAPTURES = YES;
 				SWIFT_UPCOMING_FEATURE_ISOLATED_DEFAULT_VALUES = YES;
 				SWIFT_UPCOMING_FEATURE_NONFROZEN_ENUM_EXHAUSTIVITY = YES;
+				SWIFT_UPCOMING_FEATURE_REGION_BASED_ISOLATION = YES;
 				VALIDATE_WORKSPACE = YES;
 			};
 			name = Firefox;
@@ -30059,6 +30062,7 @@
 				SWIFT_UPCOMING_FEATURE_INFER_SENDABLE_FROM_CAPTURES = YES;
 				SWIFT_UPCOMING_FEATURE_ISOLATED_DEFAULT_VALUES = YES;
 				SWIFT_UPCOMING_FEATURE_NONFROZEN_ENUM_EXHAUSTIVITY = YES;
+				SWIFT_UPCOMING_FEATURE_REGION_BASED_ISOLATION = YES;
 				VALIDATE_WORKSPACE = YES;
 			};
 			name = Fennec_Enterprise;
@@ -30367,6 +30371,7 @@
 				SWIFT_UPCOMING_FEATURE_INFER_SENDABLE_FROM_CAPTURES = YES;
 				SWIFT_UPCOMING_FEATURE_ISOLATED_DEFAULT_VALUES = YES;
 				SWIFT_UPCOMING_FEATURE_NONFROZEN_ENUM_EXHAUSTIVITY = YES;
+				SWIFT_UPCOMING_FEATURE_REGION_BASED_ISOLATION = YES;
 				VALIDATE_WORKSPACE = YES;
 			};
 			name = FirefoxBeta;
@@ -30895,6 +30900,7 @@
 				SWIFT_UPCOMING_FEATURE_INFER_SENDABLE_FROM_CAPTURES = YES;
 				SWIFT_UPCOMING_FEATURE_ISOLATED_DEFAULT_VALUES = YES;
 				SWIFT_UPCOMING_FEATURE_NONFROZEN_ENUM_EXHAUSTIVITY = YES;
+				SWIFT_UPCOMING_FEATURE_REGION_BASED_ISOLATION = YES;
 				VALIDATE_WORKSPACE = YES;
 			};
 			name = Fennec;