Introducing 'try to give memory back' callback for heap allocator to use upon allocation request that can not be satisfied by the allocator.

src/libecmaobjects/ecma-alloc.c

@@ -16,6 +16,7 @@
 #include "ecma-alloc.h"
 #include "ecma-globals.h"
 #include "ecma-gc.h"
+#include "ecma-lcache.h"
 #include "globals.h"
 #include "mem-poolman.h"
 
@@ -59,26 +60,9 @@ JERRY_STATIC_ASSERT (sizeof (ecma_label_descriptor_t) == sizeof (uint64_t));
 { \
   ecma_ ## ecma_type ## _t *p ## ecma_type = (ecma_ ## ecma_type ## _t *) mem_pools_alloc (); \
   \
-  if (likely (p ## ecma_type != NULL)) \
-  { \
-    return p ## ecma_type; \
-  } \
+  JERRY_ASSERT (p ## ecma_type != NULL); \
   \
-  for (ecma_gc_gen_t gen_id = ECMA_GC_GEN_0; \
-       gen_id < ECMA_GC_GEN_COUNT; \
-       gen_id++) \
-  { \
-    ecma_gc_run (gen_id); \
-    \
-    p ## ecma_type = (ecma_ ## ecma_type ## _t *) mem_pools_alloc (); \
-    \
-    if (likely (p ## ecma_type != NULL)) \
-    { \
-      return p ## ecma_type; \
-    } \
-  } \
-  \
-  jerry_exit (ERR_OUT_OF_MEMORY); \
+  return p ## ecma_type; \
 }
 
 /**