Refine aot call_indirect opcode translation (#492)

Re-implement aot call_indirect opcode translation: when calling non-import function, translate it by LLVM call IR to call the function in AOTed code, so as to avoid calling runtime aot_call_indirect API which is much slower. For import function, keep calling aot_call_indirect API due to the possible pointer/string argument conversion.

And add prompt info while app heap is corrupted, change emit_leb to emit_uint32 inter fast-interp to refine footprint.

Signed-off-by: Wenyong Huang <wenyong.huang@intel.com>

core/shared/mem-alloc/mem_alloc.h

@@ -42,8 +42,8 @@ int
 mem_allocator_migrate(mem_allocator_t allocator,
                       char *pool_buf_new, uint32 pool_buf_size);
 
-void
-mem_allocator_destroy_lock(mem_allocator_t allocator);
+bool
+mem_allocator_is_heap_corrupted(mem_allocator_t allocator);
 
 #ifdef __cplusplus
 }