public PcodeBlock getFrontLeaf() {
		PcodeBlock bl = this;
		while (bl instanceof BlockGraph) {
			bl = ((BlockGraph) bl).getBlock(0);
		}
		return bl;
	}
Assuming paths out of this block depend on a boolean condition
@return the PcodeBlock coming out of this if the condition is true
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/PcodeBlock.java