Differences From Artifact [db9dc4ff16]:

• File generic/tclTrace.c — part of check-in [32e489acdc] at 2018-05-08 17:38:23 on branch am-trace-ensemble — Changes to the code: remove the macro "TCL_REMOVE_OBSOLETE_TRACES" and associated code. Turn the [trace] command into an ensemble. Note: the tests show that not all is well yet, basic-15.2 for instance fails -- the [trace] command complains about an invalid operation "::deleter", but if I run the test manually, that is, by typing the commands into an interactive tclsh based on the new code, then it proceeds without a failure. (The invocation of [trace] comes from the [history] command) (user: arjenmarkus size: 99630)

To Artifact [663b0fdbac]:

• File generic/tclTrace.c — part of check-in [24937d8596] at 2018-12-03 20:32:49 on branch am-trace-ensemble — Turn the trace command into an ensemble, removing the old obsolete forms of the command. This had consequences for the counting of the arguments, as "trace add" etc. are now a single "word". (user: arjenmarkus size: 99630)

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	}

	/*
	 * Make sure the ops argument is a list object; get its length and a
	 * pointer to its array of element pointers.
	 */

	result = Tcl_ListObjGetElements(interp, objv[4], &listLen, &elemPtrs);
	if (result != TCL_OK) {
	    return result;
	}
	if (listLen == 0) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "bad operation list \"\": must be one or more of"
		    " delete or rename", -1));

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	}

	/*
	 * Make sure the ops argument is a list object; get its length and a
	 * pointer to its array of element pointers.
	 */

	result = Tcl_ListObjGetElements(interp, objv[3], &listLen, &elemPtrs);
	if (result != TCL_OK) {
	    return result;
	}
	if (listLen == 0) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "bad operation list \"\": must be one or more of"
		    " delete or rename", -1));