[runtime] Expose reportToDebugger as swift_reportToDebugger.

...so that the overlays can use it. See next commit.

Author: jrose-apple

include/swift/Runtime/Debug.h

@@ -207,8 +207,13 @@ enum: uintptr_t {
 
 /// Debugger hook. Calling this stops the debugger with a message and details
 /// about the issues.
-void reportToDebugger(uintptr_t flags, const char *message,
-                      RuntimeErrorDetails *details = nullptr);
+///
+/// This is not considered a finalized runtime entry point at this time. Do not
+/// emit calls to it from arbitrary Swift code; it's only meant for libraries
+/// that ship with the runtime (i.e. the stdlib and overlays).
+SWIFT_RUNTIME_EXPORT
+void _swift_reportToDebugger(uintptr_t flags, const char *message,
+                             RuntimeErrorDetails *details = nullptr);
 
 SWIFT_RUNTIME_EXPORT
 bool _swift_reportFatalErrorsToDebugger;

stdlib/public/runtime/Errors.cpp

@@ -256,8 +256,8 @@ void _swift_runtime_on_report(uintptr_t flags, const char *message,
                );
 }
 
-void swift::reportToDebugger(uintptr_t flags, const char *message,
-                             RuntimeErrorDetails *details) {
+void swift::_swift_reportToDebugger(uintptr_t flags, const char *message,
+                                    RuntimeErrorDetails *details) {
   _swift_runtime_on_report(flags, message, details);
 }
 

stdlib/public/runtime/Exclusivity.cpp

@@ -124,7 +124,7 @@ static void reportExclusivityConflict(ExclusivityFlags oldAction, void *oldPC,
   uintptr_t flags = RuntimeErrorFlagNone;
   if (!keepGoing)
     flags = RuntimeErrorFlagFatal;
-  reportToDebugger(flags, message, &details);
+  _swift_reportToDebugger(flags, message, &details);
 
   if (keepGoing) {
     return;

stdlib/public/runtime/SwiftObject.mm

@@ -1458,7 +1458,7 @@ void swift_objc_swift3ImplicitObjCEntrypoint(id self, SEL selector,
   uintptr_t runtime_error_flags = RuntimeErrorFlagNone;
   if (reporter == swift::fatalError)
     runtime_error_flags = RuntimeErrorFlagFatal;
-  reportToDebugger(runtime_error_flags, message, &details);
+  _swift_reportToDebugger(runtime_error_flags, message, &details);
 
   reporter(flags,
            "*** %s:%zu:%zu: %s; add explicit '@objc' to the declaration to "

stdlib/public/stubs/Assert.cpp

@@ -65,7 +65,7 @@ static void logPrefixAndMessageToDebugger(
   } else {
     swift_asprintf(&debuggerMessage, "%.*s", prefixLength, prefix);
   }
-  reportToDebugger(RuntimeErrorFlagFatal, debuggerMessage);
+  _swift_reportToDebugger(RuntimeErrorFlagFatal, debuggerMessage);
   free(debuggerMessage);
 }