Refactor class declaration logic to the parser and runtime

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 83691efbf5460aad18dfecb18119904932f67bd6..8c0862a3a4a6b672921d0bf43201055aed643c30 100644
--- a/src/asmjs/asm-wasm-builder.cc
+++ b/src/asmjs/asm-wasm-builder.cc
@@ -1652,8 +1652,6 @@ class AsmWasmBuilderImpl : public AstVisitor {
     }
   }
 
-  void VisitClassLiteral(ClassLiteral* expr) override { UNREACHABLE(); }
-
   void VisitSpread(Spread* expr) override { UNREACHABLE(); }
 
   void VisitSuperPropertyReference(SuperPropertyReference* expr) override {