Add new relocation type WASM_MEMORY_SIZE_REFERENCE, use relocatable pointers to update wasm memory …

src/assembler.cc

Index: src/assembler.cc
diff --git a/src/assembler.cc b/src/assembler.cc
index de3832b33dbee47bddba5911f381041d9666d48a..23c84730d37072dda68f3303c668a794145e7c80 100644
--- a/src/assembler.cc
+++ b/src/assembler.cc
@@ -846,6 +846,8 @@ const char* RelocInfo::RelocModeName(RelocInfo::Mode rmode) {
       return "generator continuation";
     case WASM_MEMORY_REFERENCE:
       return "wasm memory reference";
+    case WASM_MEMORY_SIZE_REFERENCE:
+      return "wasm memory size reference";
     case NUMBER_OF_MODES:
     case PC_JUMP:
       UNREACHABLE();
@@ -941,6 +943,7 @@ void RelocInfo::Verify(Isolate* isolate) {
     case DEBUG_BREAK_SLOT_AT_TAIL_CALL:
     case GENERATOR_CONTINUATION:
     case WASM_MEMORY_REFERENCE:
+    case WASM_MEMORY_SIZE_REFERENCE:
     case NONE32:
     case NONE64:
       break;