Move Args::StringTo*** functions to a new OptionArgParser class

Summary:
The idea behind this is to move the functionality which depend on other lldb
classes into a separate class. This way, the Args class can be turned
into a lightweight arc+argv wrapper and moved into the lower lldb
layers.

Reviewers: jingham, zturner

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D44306

llvm-svn: 329677

lldb/source/Interpreter/OptionGroupValueObjectDisplay.cpp

@@ -16,6 +16,7 @@
 #include "lldb/DataFormatters/ValueObjectPrinter.h"
 #include "lldb/Host/OptionParser.h"
 #include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Interpreter/OptionArgParser.h"
 #include "lldb/Target/Target.h"
 
 #include "llvm/ADT/ArrayRef.h"
@@ -85,8 +86,8 @@ Status OptionGroupValueObjectDisplay::SetOptionValue(
   switch (short_option) {
   case 'd': {
     int32_t result;
-    result =
-        Args::StringToOptionEnum(option_arg, g_dynamic_value_types, 2, error);
+    result = OptionArgParser::ToOptionEnum(option_arg, g_dynamic_value_types, 2,
+                                           error);
     if (error.Success())
       use_dynamic = (lldb::DynamicValueType)result;
   } break;
@@ -144,14 +145,14 @@ Status OptionGroupValueObjectDisplay::SetOptionValue(
     break;
 
   case 'S':
-    use_synth = Args::StringToBoolean(option_arg, true, &success);
+    use_synth = OptionArgParser::ToBoolean(option_arg, true, &success);
     if (!success)
       error.SetErrorStringWithFormat("invalid synthetic-type '%s'",
                                      option_arg.str().c_str());
     break;
 
   case 'V':
-    run_validator = Args::StringToBoolean(option_arg, true, &success);
+    run_validator = OptionArgParser::ToBoolean(option_arg, true, &success);
     if (!success)
       error.SetErrorStringWithFormat("invalid validate '%s'",
                                      option_arg.str().c_str());