[wp] Init now supported

src/plugins/wp/tests/wp_plugin/oracle/unsupported_init.res.oracle

-# frama-c -wp [...]
-[kernel] Parsing tests/wp_plugin/unsupported_init.i (no preprocessing)
-[wp] Running WP plugin...
-[wp] Loading driver 'share/wp.driver'
-[wp] Warning: Missing RTE guards
-[wp] tests/wp_plugin/unsupported_init.i:1: Warning: 
-  Allocation, initialization and danglingness not yet implemented
-  (r1: \initialized(Y + (0 .. 99)))
-------------------------------------------------------------
-  Function f
-------------------------------------------------------------
-
-Goal Assertion 'a1' (file tests/wp_plugin/unsupported_init.i, line 9):
-tests/wp_plugin/unsupported_init.i:1: warning from wp:
- - Warning: Ignored Hypothesis
-   Reason: Allocation, initialization and danglingness not yet implemented
-(r1: \initialized(Y + (0 .. 99)))
-Prove: true.
-
-------------------------------------------------------------
-
-Goal Instance of 'Pre-condition 'r1' in 'cp'' in 'f' at call 'cp' (file tests/wp_plugin/unsupported_init.i, line 8)
-:
-tests/wp_plugin/unsupported_init.i:1: warning from wp:
- - Warning: Target turned to False, looking for context inconsistency
-   Reason: Allocation, initialization and danglingness not yet implemented
-(r1: \initialized(Y + (0 .. 99)))
-Prove: false.
-
-------------------------------------------------------------

src/plugins/wp/tests/wp_plugin/oracle_qualif/unsupported_init.res.oracle

-# frama-c -wp [...]
-[kernel] Parsing tests/wp_plugin/unsupported_init.i (no preprocessing)
-[wp] Running WP plugin...
-[wp] Loading driver 'share/wp.driver'
-[wp] Warning: Missing RTE guards
-[wp] tests/wp_plugin/unsupported_init.i:1: Warning: 
-  Allocation, initialization and danglingness not yet implemented
-  (r1: \initialized(Y + (0 .. 99)))
-[wp] 2 goals scheduled
-[wp] [Qed] Goal typed_f_assert_a1 : Valid
-[wp] [Alt-Ergo] Goal typed_f_call_cp_requires_r1 : Unsuccess (Degenerated)
-[wp] Proved goals:    1 / 2
-  Qed:             1 
-  Alt-Ergo:        0  (unsuccess: 1)
-------------------------------------------------------------
- Functions                 WP     Alt-Ergo  Total   Success
-  f                         1        -        2      50.0%
-------------------------------------------------------------

src/plugins/wp/tests/wp_plugin/unsupported_init.i

-/*@ requires r1: \initialized(Y+(0 .. 99));
-    assigns X[0..99];
-    ensures X[0] == Y[0];
-*/
-void cp( int *X, int *Y );
-
-void f (int *A, int *B) {
-  cp(B, A);
-  /*@ assert a1: A[0] == B[0]; */
-}
-