Added docs for X::IO::DoesNotExist

Author: Jan-Olof Hendig

doc/Type/X/IO/DoesNotExist.pod

@@ -0,0 +1,25 @@
+=begin pod
+
+=TITLE class X::IO::DoesNotExist
+
+=SUBTITLE Error while doing file tests on a non existing path
+
+    class X::IO::DoesNotExist does X::IO is Exception { }
+
+Thrown when doing e.g. file test operations on a non existing path.
+
+A typical error message is
+
+    Failed to find 'euler-5.p6' while trying to do '.f'
+
+=head1 Methods
+
+=head2 method path
+
+Returns the path that was passed to the failed call.
+
+=head2 method trying
+
+Returns a string describing the failed operation.
+
+=end pod

type-graph.txt

@@ -349,6 +349,7 @@ class X::IO::Rmdir                  is Exception   does X::IO
 class X::IO::Unlink                 is Exception   does X::IO
 class X::IO::Symlink                is Exception   does X::IO
 class X::IO::Chmod                  is Exception   does X::IO
+class X::IO::DoesNotExist           is Exception   does X::IO
 
 [Exceptions]
 # Exceptions: Compile-Time