Add test checking that string content is declared before being allocated

Author: romainbrenguier

regression/strings-smoke-tests/java_object_allocation/test.class

@@ -0,0 +1,9 @@
+CORE
+test.class
+--refine-strings --show-goto-functions
+// Enable multi-line checking
+activate-multi-line-match
+EXIT=0
+SIGNAL=0
+char \([*]malloc_site.[0-9]*\)\[INFINITY\(\)\];\n\s*//.*\n\s*malloc_site.[0-9]*\s*=\s*MALLOC\(char \[INFINITY\(\)\], 2ull? \* INFINITY\(\)\);\n\s*//.*\n\s*cprover_string_array.[0-9]*\s*=\s*malloc_site.\d*;
+--

regression/strings-smoke-tests/java_object_allocation/test.desc

@@ -0,0 +1,9 @@
+public class test
+{
+   public static void check()
+   {
+      String s = new String("foo");
+      String t = new String("bar");
+      String u = s.concat(t);
+   }
+}