public static Field locateFieldByTypeOnClass(Class<?> classType, Class<?> containingClass) {
		return ReflectionUtilities.locateFieldByTypeOnClass(classType, containingClass);
	}
Get the first field specification contained within containingClass which has the type classType.
This method is only really useful if it is known that only a single field of 
classType exists within the containingClass hierarchy.

@param classType the class
@param containingClass the class that contains a field of the given type
@return field which corresponds to type classType or null
Ghidra/Framework/Generic/src/main/java/generic/test/TestUtils.java