[Kernel] slightly reformulate deferred error messages

tests/syntax/oracle/cert_msc_38.2.res.oracle

 [kernel] Parsing cert_msc_38.c (with preprocessing)
 [kernel:CERT:MSC:38] cert_msc_38.c:38: Warning: 
   Attempt to declare math_errhandling as external identifier outside of the stdlib. It is supposed to be a macro name and cannot be declared. See CERT C coding rule MSC38-C
-[kernel] Warning: warning CERT:MSC:38 treated as deferred error:
+[kernel] Deferred error: warning as error CERT:MSC:38:
   cert_msc_38.c:38: Attempt to declare math_errhandling as external identifier outside of the stdlib. It is supposed to be a macro name and cannot be declared. See CERT C coding rule MSC38-C
 [kernel] Frama-C aborted: invalid user input.

tests/syntax/oracle/cert_msc_38.7.res.oracle

 [kernel] Parsing cert_msc_38.c (with preprocessing)
 [kernel:CERT:MSC:38] cert_msc_38.c:60: Warning: 
   setjmp is a standard macro. Its definition cannot be suppressed, see CERT C coding rules MSC38-C
-[kernel] Warning: warning CERT:MSC:38 treated as deferred error:
+[kernel] Deferred error: warning as error CERT:MSC:38:
   cert_msc_38.c:60: setjmp is a standard macro. Its definition cannot be suppressed, see CERT C coding rules MSC38-C
 [kernel] Frama-C aborted: invalid user input.

tests/syntax/oracle/ghost_cv_incompat.res.oracle

@@ -93,6 +93,6 @@
   Invalid cast of '& g_0' from 'int \ghost *' to 'int *'
 [kernel:ghost:bad-use] ghost_cv_incompat.i:194: Warning: 
   Invalid cast of '& g_0' from 'int \ghost *' to 'int *'
-[kernel] Warning: warning ghost:bad-use treated as deferred error:
+[kernel] Deferred error: warning as error ghost:bad-use:
   ghost_cv_incompat.i:27: Invalid cast of '& ng' from 'int *' to 'int \ghost *'
 [kernel] Frama-C aborted: invalid user input.

tests/syntax/oracle/ghost_cv_invalid_use.res.oracle

@@ -57,6 +57,6 @@
   Call to non-ghost function from ghost code is not allowed
 [kernel:ghost:bad-use] ghost_cv_invalid_use.i:162: Warning: 
   Call to non-ghost function from ghost code is not allowed
-[kernel] Warning: warning ghost:bad-use treated as deferred error:
+[kernel] Deferred error: warning as error ghost:bad-use:
   ghost_cv_invalid_use.i:14: 'ng' is a non-ghost lvalue, it cannot be assigned in ghost code
 [kernel] Frama-C aborted: invalid user input.

tests/syntax/oracle/ghost_cv_var_decl.0.res.oracle

@@ -27,6 +27,6 @@
   Invalid type for 'param': indirection from non-ghost to ghost
 [kernel:ghost:bad-use] ghost_cv_var_decl.c:166: Warning: 
   Invalid type for 'pptrg': indirection from non-ghost to ghost
-[kernel] Warning: warning ghost:bad-use treated as deferred error:
+[kernel] Deferred error: warning as error ghost:bad-use:
   ghost_cv_var_decl.c:152: No definition, nor assigns specification for ghost function 'decl_bad_return_type'
 [kernel] Frama-C aborted: invalid user input.

tests/syntax/oracle/too_large_array.res.oracle

@@ -3,6 +3,6 @@
   Array length is too large.
 [kernel] too_large_array.i:12: Warning: 
   Cannot represent length of array as an attribute
-[kernel] Warning: warning too-large-array treated as deferred error:
+[kernel] Deferred error: warning as error too-large-array:
   too_large_array.i:12: Array length is too large.
 [kernel] Frama-C aborted: invalid user input.

tests/syntax/oracle/very_large_integers.11.res.oracle

@@ -29,6 +29,6 @@
   ----------------------------------------------------------------------------
   No logical properties have been reached by the analysis.
   ----------------------------------------------------------------------------
-[kernel] Warning: warning annot-error treated as deferred error:
+[kernel] Deferred error: warning as error annot-error:
   very_large_integers.c:132: Invalid slevel directive. Ignoring code annotation
 [kernel] Frama-C aborted: invalid user input.

tests/value/oracle/recursion.2.res.oracle

@@ -50,7 +50,7 @@
     Frama_C_entropy_source; x; y; tmp; tmp_0; tmp_1
 [inout] Inputs for function main_fail:
     Frama_C_entropy_source
-[eva] Warning: warning assigns:missing treated as deferred error:
+[eva] Deferred error: warning as error assigns:missing:
   recursion.c:426: Recursive call to sum_nospec without assigns clause.
   Generating probably incomplete assigns to interpret the call.
   Try to increase the -eva-unroll-recursive-calls parameter or write a correct specification for function sum_nospec.

tests/value/oracle/use_spec.0.res.oracle

@@ -74,6 +74,6 @@
     x; y
   Sure outputs:
     w; z
-[eva] Warning: warning assigns:missing treated as deferred error:
+[eva] Deferred error: warning as error assigns:missing:
   No assigns specified for function 'f' for which option -eva-use-spec is set. Generating potentially incorrect assigns.
 [kernel] Plug-in eva aborted: invalid user input.

tests/value/oracle/use_spec.1.res.oracle

@@ -74,6 +74,6 @@
     x; y
   Sure outputs:
     w; z
-[eva] Warning: warning assigns:missing treated as deferred error:
+[eva] Deferred error: warning as error assigns:missing:
   No assigns specified for function 'f' for which option -eva-use-spec is set. Generating potentially incorrect assigns.
 [kernel] Plug-in eva aborted: invalid user input.

tests/value/oracle/va_list.1.res.oracle

@@ -30,6 +30,6 @@
     vlParameters; tmp
 [inout] Inputs for function main:
     \nothing
-[eva] User Error: Deferred error message was emitted during execution:
+[eva] Deferred error message was emitted during execution:
   va_list.c:14: functions returning variadic arguments must be stubbed
 [kernel] Plug-in eva aborted: invalid user input.