Decoupled Options from CommandInterpreter.

Options used to store a reference to the CommandInterpreter instance
in the base Options class.  This made it impossible to parse options
independent of a CommandInterpreter.

This change removes the reference from the base class.  Instead, it
modifies the options-parsing-related methods to take an
ExecutionContext pointer, which the options may inspect if they need
to do so.

Closes https://reviews.llvm.org/D23416
Reviewers: clayborg, jingham

llvm-svn: 278440

lldb/source/Interpreter/OptionGroupOutputFile.cpp

@@ -52,9 +52,9 @@ OptionGroupOutputFile::GetDefinitions ()
 }
 
 Error
-OptionGroupOutputFile::SetOptionValue (CommandInterpreter &interpreter,
-                                       uint32_t option_idx,
-                                       const char *option_arg)
+OptionGroupOutputFile::SetOptionValue(uint32_t option_idx,
+                                      const char *option_arg,
+                                      ExecutionContext *execution_context)
 {
     Error error;
     const int short_option = g_option_table[option_idx].short_option;
@@ -78,7 +78,8 @@ OptionGroupOutputFile::SetOptionValue (CommandInterpreter &interpreter,
 }
 
 void
-OptionGroupOutputFile::OptionParsingStarting (CommandInterpreter &interpreter)
+OptionGroupOutputFile::OptionParsingStarting(
+                                            ExecutionContext *execution_context)
 {
     m_file.Clear();
     m_append.Clear();