@PcodeUserop
		public void ___result(T result) {
			this.result = result;
		}
A clever means of capturing the result of the expression.

@implNote The compiled source is actually {@code ___result(<expression>);} which allows us to
          capture the value (and size) of arbitrary expressions. Assigning the value to a
          temp variable instead of a userop does not quite suffice, since it requires a fixed
          size, which cannot be known ahead of time.

@param <T> no type in particular, except to match the executor
Ghidra/Framework/Emulation/src/main/java/ghidra/pcode/exec/PcodeExpression.java