LibJS/JIT: Compile the DeleteByValue instruction

Author: https://github.com/jakubberkop
Commit: 0776404e03
Pull-request: https://github.com/SerenityOS/serenity/pull/21680

Userland/Libraries/LibJS/Bytecode/Op.h

@@ -835,6 +835,8 @@ public:
     ThrowCompletionOr<void> execute_impl(Bytecode::Interpreter&) const;
     DeprecatedString to_deprecated_string_impl(Bytecode::Executable const&) const;
 
+    Register base() const { return m_base; }
+
 private:
     Register m_base;
 };