Revert of [wasm] Remove improper assembler check for grow memory.

src/assembler.cc

Index: src/assembler.cc
diff --git a/src/assembler.cc b/src/assembler.cc
index ffd15d105f60ce4a24aeec41e5e1e466d0349079..b44bc06ba36aaff6cbd92c6a6f9a1f928e0f35a7 100644
--- a/src/assembler.cc
+++ b/src/assembler.cc
@@ -351,7 +351,9 @@
                                            icache_flush_mode);
   } else if (IsWasmMemorySizeReference(rmode_)) {
     uint32_t current_size_reference = wasm_memory_size_reference();
+    DCHECK(old_size == 0 || current_size_reference <= old_size);
     uint32_t offset = old_size - current_size_reference;
+    DCHECK_GE(new_size, offset);
     uint32_t updated_size_reference = new_size - offset;
     unchecked_update_wasm_memory_size(updated_size_reference,
                                       icache_flush_mode);