C# and VB.NET Code Searcher - Using Roslyn

Languages: C#, ASP.NET, HTML, VB, Javascript.
Tools: Visual Studio 2010, 2012.
Databases: MS SQL Server, Oracle, SQLite.
Skills: MCPD Web Developer 4.0, MCSD 2.0
Likes: Solving problems at projecteuler.net. at #66 now.
Technologies:C#, Azure, Xamarin.iOS, Web API, T/SQL, PL/SQL, MSBuild, WIX, XSLT, WPF, WCF, JavaScript

I have been a programmer since 1995. At first at school where we had a computer club with nice Aster CT-80 (TRS-80 clone) computers and 1 MSX computer where I learned to program in BASIC. Later I had my own 8086 XT computer.
My first experience with programming was way before that when I was about 8. A friend of mine had a Commodore 64. He typed over a BASIC game from a computing magazine. The program worked but it contained an error. The thing he did was go to the source line that caused the error, deleted the line, and restarted the program. It worked every time he got an error...