[lldb] Forward-declare lldb-private::SaveCoreOptions

to avoid including private headers from the API headers.

This fixes API tests which link against the lldb library.

Author: labath

lldb/include/lldb/API/SBSaveCoreOptions.h

@@ -10,7 +10,6 @@
 #define LLDB_API_SBSAVECOREOPTIONS_H
 
 #include "lldb/API/SBDefines.h"
-#include "lldb/Symbol/SaveCoreOptions.h"
 
 namespace lldb {
 

lldb/include/lldb/lldb-forward.h

@@ -182,6 +182,7 @@ class RegisterTypeBuilder;
 class RegisterValue;
 class RegularExpression;
 class RichManglingContext;
+class SaveCoreOptions;
 class Scalar;
 class ScriptInterpreter;
 class ScriptInterpreterLocker;