Merge pull request #38496 from slavapestov/irgen-overlay-fix

IRGen: Build test overlays with -enable-library-evolution

Author: slavapestov

test/IRGen/Inputs/ObjectiveC.swift

@@ -1,6 +1,7 @@
 // This is an overlay Swift module.
 @_exported import ObjectiveC
 
+@frozen
 public struct ObjCBool : CustomStringConvertible {
 #if (os(macOS) && arch(x86_64)) || (os(iOS) && (arch(i386) || arch(arm) || targetEnvironment(macCatalyst)))
 
@@ -34,6 +35,7 @@ public struct ObjCBool : CustomStringConvertible {
   }
 }
 
+@frozen
 public struct Selector {
   private var ptr : OpaquePointer
 }

test/IRGen/lit.local.cfg

@@ -2,12 +2,12 @@
 config.substitutions = list(config.substitutions)
 
 config.substitutions.insert(0, ('%build-irgen-test-overlays',
-                                '%target-swift-frontend -enable-objc-interop -disable-objc-attr-requires-foundation-module -emit-module -o %t -sdk %S/Inputs %S/Inputs/ObjectiveC.swift && '
-                                '%target-swift-frontend -enable-objc-interop -emit-module -o %t -sdk %S/Inputs %S/Inputs/Foundation.swift -I %t'))
+                                '%target-swift-frontend -enable-objc-interop -disable-objc-attr-requires-foundation-module -emit-module -enable-library-evolution -o %t -sdk %S/Inputs %S/Inputs/ObjectiveC.swift && '
+                                '%target-swift-frontend -enable-objc-interop -emit-module -enable-library-evolution -o %t -sdk %S/Inputs %S/Inputs/Foundation.swift -I %t'))
 
 config.substitutions.insert(0, ('%build-irgen-test-overlays\(mock-sdk-directory: ([^)]+)\)',
-                             SubstituteCaptures(r'%target-swift-frontend -enable-objc-interop -disable-objc-attr-requires-foundation-module -emit-module -o %t -sdk \1 \1/ObjectiveC.swift && '
-                                r'%target-swift-frontend -enable-objc-interop -emit-module -o %t -sdk \1 \1/Foundation.swift -I %t')))
+                             SubstituteCaptures(r'%target-swift-frontend -enable-objc-interop -disable-objc-attr-requires-foundation-module -emit-module -enable-library-evolution -o %t -sdk \1 \1/ObjectiveC.swift && '
+                                r'%target-swift-frontend -enable-objc-interop -emit-module -enable-library-evolution -o %t -sdk \1 \1/Foundation.swift -I %t')))
 
 def get_target_os():
     import re