Merge pull request #36665 from apple/shahmishal/xfail-implementation-only-import-suggestion

Update the unsupported OS to iOS

Author: shahmishal

test/Sema/implementation-only-import-suggestion.swift

@@ -46,6 +46,6 @@ import main // expected-warning{{'implementation-only-import-suggestion.swift' i
 
 
 // rdar://76004923
-// UNSUPPORTED: OS=iphoneos
+// UNSUPPORTED: OS=ios
 // UNSUPPORTED: OS=watchos
 // UNSUPPORTED: OS=tvos