(c-inside-bracelist-p): Fix for enum test.

(c-inside-bracelist-p): Fix for enum test.

(c-collect-line-comments): Require same comment start column.

(c-guess-basic-syntax): Fixes for nesting of and
repeated defun-open's inside extern and namespace clauses.  This
is done by passing a relpos to `inextern-lang' and `innamespace'.
Also, the relpos in `defun-open' is no longer always bol.  It's
always bol when on the top level, however.  Changed cases: 5A.5, 5I, 14A.

(c-forward-token-1, c-backward-token-1): New functions to move by tokens.
c-guess-basic-syntax): Fixes for Java 1.1 array initialization brace lists.