Rename the Jar Infer Flags JarInferEnabled,JarInferUseReturnAnnotations #940
Description
The Flags XepOpt:NullAway:JarInferEnabled,XepOpt:NullAway:JarInferUseReturnAnnotations need to be renamed to represent their purpose more appropriately, for e.g. XepOpt:NullAway:ScanClassPathForAstubXModels as suggested in the above discussion.