CodeDomConvertVisitor now converts global usings.
Fixed issue in semantic highlighting type errors
Added extract method unit test.
Fixed verbatim identifier location.
Fixed unit test.
Fixed some false positives in parameter not used issue.
Added ConditionalSymbols to ITypeDefinition and IMethod
Added property IsConditionallyRemoved to IAttribute
Added property IsConditionallyRemoved to InvocationResolveResult
Merge branch 'upstream_master'
Merge branch 'conditional'