private Function getFunctionContaining(Address addr) {
		if (cachedFunction != null && cachedFunction.getBody().contains(addr)) {
			return cachedFunction;
		}
		return listing.getFunctionContaining(addr);
	}
Return the global object being referred to by addr

@param addr = Address being queried
@return the global object
Ghidra/Features/Decompiler/src/main/java/ghidra/app/decompiler/DecompileCallback.java