PATH: reset innermost_block on 'run'

[Per Bothner <per@bothner.com>]

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It's been a while since I made this change, but as I recall
without it gdb will tend to crash when you re-start the
inferior using a 'run' command.

Now I don't know exactly the best place to reset the
innermost_block variable, but it *is* a cache variable
that must be reset whenever execution continues, including
on each 'run'.

	* infcmd.c (run_command):  Reset innermost_block.
-- 
	--Per Bothner
per@bothner.com   http://www.bothner.com/per/

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Index: infcmd.c
===================================================================
RCS file: /cvs/src/src/gdb/infcmd.c,v
retrieving revision 1.43
diff -u -p -r1.43 infcmd.c
--- infcmd.c	28 Mar 2002 01:35:55 -0000	1.43
+++ infcmd.c	11 Apr 2002 23:57:47 -0000
@@ -387,6 +387,8 @@ Start it from the beginning? "))
       init_wait_for_inferior ();
     }
 
+  innermost_block = NULL;
+
   clear_breakpoint_hit_counts ();
 
   /* Purge old solib objfiles. */