6962318: Update copyright year
Reviewed-by: xdono

6943119: Rebrand source copyright notices
Reviewed-by: darcy

6933914: fix missing newlines
Reviewed-by: ohair

6869075: regression: javac crashes when compiling compound string assignment with generics
Summary: javac should not add syntehtic cast to the LHS of an assignment expression
Reviewed-by: jjg