[cdt-dev] API changes

[Sergey Prigogin <eclipse.sprigogin@xxxxxxxxx>]

I've added parsing support for constexpr keyword in commit http://git.eclipse.org/c/cdt/org.eclipse.cdt.git/commit/?id=e55325538485fe691418c4b50c7a4d947239d95c. It included the following API changes:

ICPPASTDeclSpecifier
    public boolean isConstexpr();
    public void setConstexpr(boolean value);

IToken
    int t_constexpr = 5400;

Keywords
    public static final String CONSTEXPR = "constexpr";
    public static final char[] cCONSTEXPR = "constexpr".toCharArray(); 

I've also added few new C++11 keywords:

IToken
    int t_noexcept = 5401;
    int t_thread_local = 5403;

Keywords
    public static final String ALIGNAS = "alignas";
    public static final String NOEXCEPT = "noexcept";
    public static final String THREAD_LOCAL = "thread_local"; 
    public static final char[] cALIGNAS = "alignas".toCharArray(); 
    public static final char[] cNOEXCEPT = "noexcept".toCharArray(); 
    public static final char[] cTHREAD_LOCAL = "thread_local".toCharArray(); 

-sergey