Fix test currently broken

(See frama-c/e-acsl!169)

src/plugins/e-acsl/tests/gmp/cast.i

@@ -20,7 +20,7 @@ int main(void) {
 
   /* heterogeneous casts from/to integers */
   int t[2] = { 0, 1 };
-  /*@ assert (float)x == t[(int)0.1]; */
+  /*@ assert (float)x == (float)t[(int)0.1]; */
 
   return 0;
 }

src/plugins/e-acsl/tests/gmp/oracle/cast.0.res.oracle

@@ -16,6 +16,4 @@ tests/gmp/cast.i:23:[e-acsl] warning: approximating a real number by a float
   __e_acsl_math_INFINITY ∈ [-1.79769313486e+308 .. 1.79769313486e+308]
 [value] using specification for function __e_acsl_memory_init
 [value] using specification for function __e_acsl_assert
-[value] user error: type long double wider than 64 bits not supported.
-                    Using double instead for the remainder of the analysis.
 [value] done for function main

src/plugins/e-acsl/tests/gmp/oracle/cast.1.res.oracle

@@ -23,8 +23,6 @@ FRAMAC_SHARE/e-acsl/e_acsl.h:94:[value] warning: function __e_acsl_assert: preco
 [value] using specification for function __gmpz_clear
 [value] using specification for function __gmpz_get_ui
 [value] using specification for function __gmpz_init_set_ui
-[value] user error: type long double wider than 64 bits not supported.
-                    Using double instead for the remainder of the analysis.
 tests/gmp/cast.i:23:[value] warning: accessing out of bounds index. assert 0 ≤ __gen_e_acsl_cast_9;
 tests/gmp/cast.i:23:[value] warning: accessing out of bounds index. assert __gen_e_acsl_cast_9 < 2;
 [value] done for function main