Merge pull request #75594 from benlangmuir/script-load-foundation-early

[immediate] Load Foundation early enough for bridging

include/swift/AST/DiagnosticsFrontend.def

@@ -115,6 +115,8 @@ ERROR(error_immediate_mode_missing_library,none,
       (unsigned, StringRef))
 ERROR(error_immediate_mode_primary_file,none,
       "immediate mode is incompatible with -primary-file", ())
+WARNING(warning_immediate_mode_cannot_load_foundation,none,
+        "immediate mode failed to load Foundation: %0", (StringRef))
 ERROR(error_missing_frontend_action,none,
       "no frontend action was selected", ())
 ERROR(error_invalid_source_location_str,none,

include/swift/Immediate/Immediate.h

@@ -24,6 +24,7 @@
 
 namespace swift {
   class CompilerInstance;
+  class DiagnosticEngine;
   class IRGenOptions;
   class SILOptions;
   class SILModule;
@@ -44,6 +45,9 @@ namespace swift {
 
   int RunImmediatelyFromAST(CompilerInstance &CI);
 
+  /// On platforms that support ObjC bridging from the Foundation framework,
+  /// ensure that Foundation is loaded early enough. Otherwise does nothing.
+  void loadFoundationIfNeeded(DiagnosticEngine &Diags);
 } // end namespace swift
 
 #endif // SWIFT_IMMEDIATE_IMMEDIATE_H