Update broken tests.

Author: Remi Delmas

regression/contracts/assigns_enforce_address_of/test.desc

@@ -3,7 +3,7 @@ main.c
 --enforce-contract foo
 ^EXIT=(1|64)$
 ^SIGNAL=0$
-^.*error: assigns clause target must be an lvalue or __CPROVER_POINTER_OBJECT expression$
+^.*error: assigns clause target must be an lvalue or a __CPROVER_POINTER_OBJECT, __CPROVER_object_from, __CPROVER_object_slice expression$
 ^CONVERSION ERROR$
 --
 --

regression/contracts/assigns_enforce_conditional_non_lvalue_target/test.desc

@@ -1,7 +1,7 @@
 CORE
 main.c
 --enforce-contract foo
-^.*error: assigns clause target must be an lvalue or __CPROVER_POINTER_OBJECT expression$
+^.*error: assigns clause target must be an lvalue or a __CPROVER_POINTER_OBJECT, __CPROVER_object_from, __CPROVER_object_slice expression$
 ^CONVERSION ERROR
 ^EXIT=(1|64)$
 ^SIGNAL=0$

regression/contracts/assigns_enforce_conditional_non_lvalue_target_list/test.desc

@@ -1,7 +1,7 @@
 CORE
 main.c
 --enforce-contract foo
-^.*error: assigns clause target must be an lvalue or __CPROVER_POINTER_OBJECT expression$
+^.*error: assigns clause target must be an lvalue or a __CPROVER_POINTER_OBJECT, __CPROVER_object_from, __CPROVER_object_slice expression$
 ^CONVERSION ERROR
 ^EXIT=(1|64)$
 ^SIGNAL=0$

regression/contracts/assigns_enforce_function_calls/test.desc

@@ -3,8 +3,7 @@ main.c
 --enforce-contract foo
 ^EXIT=(1|64)$
 ^SIGNAL=0$
-^.*error: assigns clause target must be an lvalue or __CPROVER_POINTER_OBJECT expression$
-^.*error: side-effects not allowed in assigns clause targets$
+^.*error: function calls in assigns clause targets must be to __CPROVER_object_from, __CPROVER_object_slice$
 ^CONVERSION ERROR$
 --
 --

regression/contracts/assigns_enforce_literal/test.desc

@@ -3,7 +3,7 @@ main.c
 --enforce-contract foo
 ^EXIT=(1|64)$
 ^SIGNAL=0$
-^.*error: assigns clause target must be an lvalue or __CPROVER_POINTER_OBJECT expression$
+^.*error: assigns clause target must be an lvalue or a __CPROVER_POINTER_OBJECT, __CPROVER_object_from, __CPROVER_object_slice expression$
 ^CONVERSION ERROR$
 --
 --

regression/contracts/assigns_enforce_side_effects_1/test.desc

@@ -1,8 +1,7 @@
 CORE
 main.c
 --enforce-contract foo
-activate-multi-line-match
-.*error: (dereferencing void pointer|void-typed expressions not allowed as assigns clause targets\n.*\n.*error: side-effects not allowed in assigns clause targets\n.*\n.*error: ternary expressions not allowed in assigns clause targets\n)
+^.*error: void-typed expressions not allowed as assigns clause targets$
 ^CONVERSION ERROR$
 ^EXIT=(1|64)$
 ^SIGNAL=0$

regression/contracts/assigns_enforce_side_effects_2/test.desc

@@ -3,8 +3,7 @@ main.c
 --enforce-contract foo
 ^EXIT=(1|64)$
 ^SIGNAL=0$
-^.*error: assigns clause target must be an lvalue or __CPROVER_POINTER_OBJECT expression$
-^.*error: side-effects not allowed in assigns clause targets$
+^.*error: assigns clause target must be an lvalue or a __CPROVER_POINTER_OBJECT, __CPROVER_object_from, __CPROVER_object_slice expression$
 ^CONVERSION ERROR$
 --
 --

regression/contracts/assigns_enforce_side_effects_3/test.desc

@@ -3,8 +3,7 @@ main.c
 --enforce-contract foo
 ^EXIT=(1|64)$
 ^SIGNAL=0$
-^.*error: assigns clause target must be an lvalue or __CPROVER_POINTER_OBJECT expression$
-^.*error: side-effects not allowed in assigns clause targets$
+^.*error: assigns clause target must be an lvalue or a __CPROVER_POINTER_OBJECT, __CPROVER_object_from, __CPROVER_object_slice expression$
 ^CONVERSION ERROR$
 --
 --

regression/contracts/assigns_type_checking_invalid_case_01/test.desc

@@ -4,6 +4,6 @@ main.c
 ^EXIT=(1|64)$
 ^SIGNAL=0$
 ^CONVERSION ERROR$
-^.*error: assigns clause target must be an lvalue or __CPROVER_POINTER_OBJECT expression$
+^.*error: assigns clause target must be an lvalue or a __CPROVER_POINTER_OBJECT, __CPROVER_object_from, __CPROVER_object_slice expression$
 --
 Checks whether type checking rejects literal constants in assigns clause.