Change Log: 2.021

New/Changed Features

• Added -safe switch and module(system) Identifier; syntax.
• Added range support to foreach statement.
• scope parameter storage class means the parameter will not 'escape' the scope of the function invocation. Using this for delegate parameters will prevent some closure allocations by the calling function.
• The lazy storage class now implies scope so that lazy arguments won't trigger a heap allocated closure.
• The 'this' parameter to struct member functions is now a reference type, rather than a pointer. This breaks existing code.
• More changes to druntime:

  from	to
  OutOfMemoryException	OutOfMemoryError
  SwitchException	SwitchError
  HiddenFuncException	HiddenFuncError
  ArrayBoundsException	RangeError
  AssertException	AssertError
  FinalizeException	FinalizeError
  onArrayBoundsError	onRangeError
  stdc.*	core.stdc.*
  sys.*	core.sys.*

• Added core.runtime.loadLibrary() as an experimental feature for loading dynamic libraries (Win32 only at the moment).
• Added core.runtime.unloadLibrary() as an experimental feature for unloading dynamic libraries previously loaded by loadLibrary().
• core.thread.sleep() accepts a long integer specifying the sleep interval in 100 nanosecond intervals (the previous release notes said this was a float, IIRC).
• It is no longer necessary to link in druntime separately, it is inserted into libphobos2.a.