SYNOPSIS
	int trace(int traceflags)

DESCRIPTION
	Sets the trace flags and returns the old trace flags. When tracing
	is on a lot of information is printed during execution.

	The trace bits are:

	1	Trace all function calls to lfuns.
	2	Trace all calls to call_other
	4	Trace all function returns.
	8	Print argunents at function calls and return values.
	16	Print all executed stack machine instructions
		(produces a lot of output!).
	32	Enable trace in heart beat functions.
	64	Trace calls to apply.
	128	Show object name in tracing.

SEE ALSO
