Re-enable VFE/WME tests, take 3, rdar://84643923 (swiftlang#39955)

Author: kubamracek

test/IRGen/virtual-function-elimination-exec.swift

@@ -3,7 +3,7 @@
 // the program).
 
 // RUN: %empty-directory(%t)
-// RUN: %target-build-swift -Xfrontend -enable-llvm-vfe %s -emit-ir -o %t/main.ll
+// RUN: %target-build-swift -Xfrontend -enable-llvm-vfe %s -Onone -emit-ir -o %t/main.ll
 // RUN: %target-clang %t/main.ll -isysroot %sdk -L%swift_obj_root/lib/swift/%target-sdk-name -flto -o %t/main
 // RUN: %target-run %t/main | %FileCheck %s
 
@@ -19,9 +19,6 @@
 // loaded too late").
 // REQUIRES: no_asan
 
-// Disable to unblock CI
-// REQUIRES: rdar84643923
-
 class MyClass {
   func foo() { print("MyClass.foo") }
   func bar() { print("MyClass.bar") }

test/IRGen/witness-method-elimination-exec.swift

@@ -3,7 +3,7 @@
 // the program).
 
 // RUN: %empty-directory(%t)
-// RUN: %target-build-swift -Xfrontend -enable-llvm-wme %s -emit-ir -o %t/main.ll
+// RUN: %target-build-swift -Xfrontend -enable-llvm-wme %s -Onone -emit-ir -o %t/main.ll
 // RUN: %target-clang %t/main.ll -isysroot %sdk -L%swift_obj_root/lib/swift/%target-sdk-name -flto -o %t/main
 // RUN: %target-run %t/main | %FileCheck %s
 
@@ -19,9 +19,6 @@
 // loaded too late").
 // REQUIRES: no_asan
 
-// Disable to unblock CI
-// REQUIRES: rdar84643923
-
 protocol TheProtocol {
   func func1_live()
   func func2_dead()

test/IRGen/witness-method-elimination-two-modules.swift

@@ -6,20 +6,20 @@
 // RUN: %empty-directory(%t)
 
 // (1) Build library swiftmodule
-// RUN: %target-build-swift -parse-as-library -Xfrontend -enable-llvm-wme \
+// RUN: %target-build-swift -parse-as-library -Onone -Xfrontend -enable-llvm-wme \
 // RUN:     %s -DLIBRARY -module-name Library \
 // RUN:     -emit-module -o %t/Library.swiftmodule \
 // RUN:     -emit-tbd -emit-tbd-path %t/libLibrary.tbd -Xfrontend -tbd-install_name=%t/libLibrary.dylib
 
 // (2) Build client
-// RUN: %target-build-swift -parse-as-library -Xfrontend -enable-llvm-wme \
+// RUN: %target-build-swift -parse-as-library -Onone -Xfrontend -enable-llvm-wme \
 // RUN:     %s -DCLIENT -module-name Main -I%t -L%t -lLibrary -o %t/main
 
 // (3) Extract a list of used symbols by client from library
 // RUN: %llvm-nm --undefined-only -m %t/main | grep 'from libLibrary' | awk '{print $3}' > %t/used-symbols
 
 // (4) Now produce the .dylib with just the symbols needed by the client
-// RUN: %target-build-swift -parse-as-library -Xfrontend -enable-llvm-wme -Xfrontend -internalize-at-link \
+// RUN: %target-build-swift -parse-as-library -Onone -Xfrontend -enable-llvm-wme -Xfrontend -internalize-at-link \
 // RUN:     %s -DLIBRARY -lto=llvm-full %lto_flags -module-name Library \
 // RUN:     -emit-library -o %t/libLibrary.dylib \
 // RUN:     -Xlinker -exported_symbols_list -Xlinker %t/used-symbols -Xlinker -dead_strip
@@ -40,9 +40,6 @@
 // loaded too late").
 // REQUIRES: no_asan
 
-// Disable to unblock CI
-// REQUIRES: rdar84643923
-
 #if LIBRARY
 
 public protocol MyProtocol {