void refresh() {
		this.paramStart = function.getStackParamOffset();
		this.returnStart = function.getStackReturnOffset();
		this.localSize = function.getStackLocalSize();
		variables = null;
		loadStackVariables();
	}
Construct a function stack frame.
@param function
@param variables
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/oldfunction/OldStackFrameDB.java