public int numMatchedInstructionsInSecond() {
		return destStore.numMatchedInstructions();
	}
Determines the number of instructions from the second function that match an instruction
in the first function.
@return the number of instructions in the second function that have matches.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/correlate/HashedFunctionAddressCorrelation.java