namespace Diagnostics

in global :: System

This namespace contains:

namespace CodeAnalysis
class ConditionalAttribute Indicates to compilers that a method call or attribute should be ignored unless a specified conditional compilation symbol is defined.
class DebuggableAttribute Modifies code generation for runtime just-in-time (JIT) debugging. This class cannot be inherited.
class DebuggerBrowsableAttribute Determines if and how a member is displayed in the debugger variable windows. This class cannot be inherited.
class DebuggerDisplayAttribute Determines how a class or field is displayed in the debugger variable windows.
class DebuggerHiddenAttribute Specifies the . This class cannot be inherited.
class DebuggerStepThroughAttribute Instructs the debugger to step through the code instead of stepping into the code. This class cannot be inherited.
class StackTraceHiddenAttribute
class Stopwatch Provides a set of methods and properties that you can use to accurately measure elapsed time.
class UnreachableException