Reimplemented the code that backed the "settings" in lldb. There were many issues with the previous implementation:
- no setting auto completion
- very manual and error prone way of getting/setting variables
- tons of code duplication
- useless instance names for processes, threads

Now settings can easily be defined like option values. The new settings makes use of the "OptionValue" classes so we can re-use the option value code that we use to set settings in command options. No more instances, just "does the right thing".



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@162366 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Target/ThreadPlanStepInRange.cpp b/source/Target/ThreadPlanStepInRange.cpp
index 725d48d..a524349 100644
--- a/source/Target/ThreadPlanStepInRange.cpp
+++ b/source/Target/ThreadPlanStepInRange.cpp
@@ -234,9 +234,7 @@
 {
     StackFrame *frame = GetThread().GetStackFrameAtIndex(0).get();
 
-    RegularExpression *avoid_regexp_to_use;
-    
-    avoid_regexp_to_use = m_avoid_regexp_ap.get();
+    const RegularExpression *avoid_regexp_to_use = m_avoid_regexp_ap.get();
     if (avoid_regexp_to_use == NULL)
         avoid_regexp_to_use = GetThread().GetSymbolsToAvoidRegexp();