public static String dumpContextValue(RegisterValue value, String indent) {
		StringBuilder buf = new StringBuilder();
		dumpContextValue(value, indent, buf);
		return buf.toString();
	}
Returns true if a value is defined for the given register.
@param register the register to check for a value.
@return true if the given register has a value.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/ProcessorContextView.java