private void dealWithUnnecessaryTrunc(OpTpl op, Constructor ct) {
		if (printextwarning) {
			compiler.reportWarning(op.location, "Unnecessary '" + getOpName(op) + "'");
		}
		op.setOpcode(OpCode.CPUI_COPY); // Equivalent to copy
		op.removeInput(1);
		unnecessarypcode += 1;
	}
Returns true precisely when {@code vn} is in the unique space
and has a size larger than {@link SleighBase#MAX_UNIQUE_SIZE}.
@param vn varnode template to check
@return true if it uses a large temporary
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcodeCPort/slgh_compile/ConsistencyChecker.java