issue #15 set savedpc prior to entering a JITed function

lua-5.3.0-tests/all.lua

@@ -151,9 +151,7 @@ report"gc.lua"
 local f = assert(loadfile('gc.lua'))
 f()
 
---if not ravi or not ravi.auto() then
 dofile('db.lua')
---end
 assert(dofile('calls.lua') == deep and deep)
 olddofile('strings.lua')
 olddofile('literals.lua')
@@ -178,9 +176,7 @@ dofile('vararg.lua')
 dofile('closure.lua')
 dofile('coroutine.lua')
 dofile('goto.lua', true)
-if not ravi or not ravi.auto() then
-  dofile('errors.lua')
-end
+dofile('errors.lua')
 dofile('math.lua')
 dofile('sort.lua', true)
 dofile('bitwise.lua')

lua-5.3.0-tests/errors.lua

@@ -359,10 +359,7 @@ if not _soft then
   end
   local i=1
   while stack[i] ~= l1 do
-    -- RAVI bug
-    if not ravi or ravi.auto() and i > 1 then
     assert(stack[i] == l)
-    end
     i = i+1
   end
   assert(i > 15)

src/ldo.c

@@ -378,6 +378,13 @@ int luaD_precall (lua_State *L, StkId func, int nresults, int op_call) {
         /* compiled */
         lua_assert(p->ravi_jit.jit_function != NULL);
         ci->jitstatus = 1;
+        /* Since the JITed function does not update savedpc
+         * other than for calls by default - the stack trace error
+         * message below will be unable to find the line info
+         * as savedpc is not set correctly - so we set this here
+         * prior to the call
+         */
+        ci->u.l.savedpc++;
         /* As JITed function is like a C function
          * employ the same restrictions on recursive
          * calls as for C functions