[variadic] In tests, uses the Eva parameter -eva-unroll-recursive-calls.

Instead of the deprecated parameter -eva-ignore-recursive-calls.

src/plugins/variadic/tests/defined/oracle/recursive.res.oracle

@@ -6,15 +6,11 @@
 [eva] Analyzing a complete application starting at main
 [eva] Computing initial state
 [eva] Initial state computed
-[eva] tests/defined/recursive.i:8: Warning: 
-  recursive call during value analysis
-  of f (f <- f :: tests/defined/recursive.i:12 <- main). Assuming the call has
-  no effect. The analysis will be unsound.
-[eva] using specification for function f
+[eva] tests/defined/recursive.i:8: detected recursive call of function f.
 [eva] done for function main
 [eva] ====== VALUES COMPUTED ======
 [eva:final-states] Values at end of function f:
-  __retres ∈ [--..--]
+  __retres ∈ {42}
 [eva:final-states] Values at end of function main:
   
 /* Generated by Frama-C */

src/plugins/variadic/tests/defined/recursive.i

 /* run.config
-STDOPT: +"-eva-ignore-recursive-calls"
+STDOPT: +"-eva-unroll-recursive-calls 10"
 */
 int f(int a, ...){
   if(a <= 0)