[wasm] Remove special memory type for (internal) globals and use local type instead.

src/asmjs/asm-wasm-builder.cc

Index: src/asmjs/asm-wasm-builder.cc
diff --git a/src/asmjs/asm-wasm-builder.cc b/src/asmjs/asm-wasm-builder.cc
index 24278b1b805dae9466ee1055fe0ba1ebe9550469..9ac748bdd0f4b553327ecbe0c32855372b45cc68 100644
--- a/src/asmjs/asm-wasm-builder.cc
+++ b/src/asmjs/asm-wasm-builder.cc
@@ -1698,8 +1698,7 @@ class AsmWasmBuilderImpl final : public AstVisitor<AsmWasmBuilderImpl> {
     ZoneHashMap::Entry* entry =
         global_variables_.Lookup(v, ComputePointerHash(v));
     if (entry == nullptr) {
-      uint32_t index =
-          builder_->AddGlobal(WasmOpcodes::MachineTypeFor(type), 0);
+      uint32_t index = builder_->AddGlobal(type, 0);
       IndexContainer* container = new (zone()) IndexContainer();
       container->index = index;
       entry = global_variables_.LookupOrInsert(v, ComputePointerHash(v),