Revert "Options: Make -experimental-lazy-typecheck a driver option."

This reverts commit c683703.

Author: tshortli

include/swift/Option/FrontendOptions.td

@@ -444,6 +444,9 @@ def debug_forbid_typecheck_prefix : Separate<["-"], "debug-forbid-typecheck-pref
   HelpText<"Triggers llvm fatal_error if typechecker tries to typecheck a decl "
            "with the provided prefix name">;
 
+def experimental_lazy_typecheck : Flag<["-"], "experimental-lazy-typecheck">,
+  HelpText<"Type-check lazily as needed to produce requested outputs">;
+
 def debug_emit_invalid_swiftinterface_syntax : Flag<["-"], "debug-emit-invalid-swiftinterface-syntax">,
   HelpText<"Write an invalid declaration into swiftinterface files">;
 

include/swift/Option/Options.td

@@ -1887,11 +1887,6 @@ def cache_replay_prefix_map: Separate<["-"], "cache-replay-prefix-map">,
   Flags<[FrontendOption, NoDriverOption, CacheInvariant]>,
   HelpText<"Remap paths when replaying outputs from cache">, MetaVarName<"<prefix=replacement>">;
 
-def experimental_lazy_typecheck :
-  Flag<["-"], "experimental-lazy-typecheck">,
-  Flags<[FrontendOption, NewDriverOnlyOption, HelpHidden]>,
-  HelpText<"Type-check lazily as needed to produce requested outputs">;
-
 // END ONLY SUPPORTED IN NEW DRIVER