Fix undefined references build error on Windows (x64) (#3168)

We should emit function symbols for these jerry-core functions:
- ecma_compare_ecma_strings is used by test-stringbuilder.c
- ecma_is_value_number is used by test-literal-storage.c
- ecma_date_time_within_day is used by test-date-helpers.c
- jmem_heap_alloc_block is used by test-jmem.c
- jmem_heap_free_block is used by test-jmem.c
- jmem_pools_alloc is used by test-poolman.c
- jmem_pools_free is used by test-poolman.c

JerryScript-DCO-1.0-Signed-off-by: Csaba Osztrogonác oszi@inf.u-szeged.hu

jerry-core/jmem/jmem-poolman.c

@@ -55,7 +55,7 @@ jmem_pools_finalize (void)
  * @return pointer to allocated chunk, if allocation was successful,
  *         or NULL - if not enough memory.
  */
-inline void * JERRY_ATTR_HOT JERRY_ATTR_ALWAYS_INLINE
+extern inline void * JERRY_ATTR_HOT JERRY_ATTR_ALWAYS_INLINE
 jmem_pools_alloc (size_t size) /**< size of the chunk */
 {
 #if ENABLED (JERRY_MEM_GC_BEFORE_EACH_ALLOC)
@@ -115,7 +115,7 @@ jmem_pools_alloc (size_t size) /**< size of the chunk */
 /**
  * Free the chunk
  */
-inline void JERRY_ATTR_HOT JERRY_ATTR_ALWAYS_INLINE
+extern inline void JERRY_ATTR_HOT JERRY_ATTR_ALWAYS_INLINE
 jmem_pools_free (void *chunk_p, /**< pointer to the chunk */
                  size_t size) /**< size of the chunk */
 {