* eval.c (return_jump): set return value to the return

destination.  separated from localjump_destination().

* eval.c (break_jump): break innermost loop (or thread or proc).

* eval.c (rb_yield_0): set exit_value for block break.

* eval.c (eval): Only print backtrace if generating the backtrace
  doesn't generate an exception.  [ruby-core:02621]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@5936 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/irb/lc/help-message

@@ -14,6 +14,7 @@ Usage:  irb.rb [options] [programfile] [arguments]
   -m		    Bc mode (load mathn, fraction or matrix are available)
   -d                Set $DEBUG to true (same as `ruby -d')
   -r load-module    Same as `ruby -r'
+  -I path           Specify $LOAD_PATH directory
   --inspect	    Use `inspect' for output (default except for bc mode)
   --noinspect	    Don't use inspect for output
   --readline	    Use Readline extension module

lib/irb/lc/ja/help-message

@@ -14,6 +14,7 @@ Usage:  irb.rb [options] [programfile] [arguments]
   -m		    bc$B%b!<%I(B($BJ,?t(B, $B9TNs$N7W;;$,$G$-$k(B)
   -d                $DEBUG $B$r(Btrue$B$K$9$k(B(ruby -d $B$HF1$8(B)
   -r load-module    ruby -r $B$HF1$8(B.
+  -I path           $LOAD_PATH $B$K(B path $B$rDI2C$9$k(B.
   --inspect	    $B7k2L=PNO$K(Binspect$B$rMQ$$$k(B(bc$B%b!<%I0J30$O%G%U%)%k%H(B). 
   --noinspect	    $B7k2L=PNO$K(Binspect$B$rMQ$$$J$$(B.
   --readline	    readline$B%i%$%V%i%j$rMxMQ$9$k(B.