static long conv2IntToLong(int msl, int lsl) {
		return Integer.toUnsignedLong(msl) << Integer.SIZE | Integer.toUnsignedLong(lsl);
	}
Convert two integers into a single long

<p>
In terms of the JVM stack, this simply converts the top two ints to an equivalent long.
<b>TODO</b>: This no longer appears to be used, but may be in anticipation of multi-precision
integer support.

@param msl the more significant leg
@param lsl the less significant leg
@return the long
Ghidra/Framework/Emulation/src/main/java/ghidra/pcode/emu/jit/gen/tgt/JitCompiledPassage.java