public void if_icmpne(final Label label) {
        visitJumpInsn(Opcodes.IF_ICMPNE, label);
    }
Constructs a new {@link MethodWriter}.

@param symbolTable where the constants used in this AnnotationWriter must be stored.
@param access      the method's access flags (see {@link Opcodes}).
@param name        the method's name.
@param descriptor  the method's descriptor (see {@link Type}).
core/src/main/java/com/alibaba/fastjson2/internal/asm/MethodWriter.java