The output of gcc_jit_context_dump_to_file() is missing parenthesis in expressions involving casts

[Dibyendu Majumdar <mobile@majumdar.org.uk>]

It seems that in some cases the output is not showing parenthesis
where it should.

For instance:

 if ((struct ravi_LClosure *)L->ci->func->p->sizep > (int)0)


The cast is to be applied to L->ci->func - so this expression should
be in parenthesis.

  gcc_jit_rvalue *rvalue__struct_ravi_LClosure___L__ci__func_0xae4e10 =
    gcc_jit_context_new_cast (ctxt_0xae4350,
                              NULL, /* gcc_jit_location *loc */
                              gcc_jit_lvalue_as_rvalue
(lvalue_L__ci__func_0xae4b90), /* gcc_jit_rvalue *rvalue */

  gcc_jit_lvalue *lvalue__struct_ravi_LClosure___L__ci__func__p_0xae4fd0=
    gcc_jit_rvalue_dereference_field
(rvalue__struct_ravi_LClosure___L__ci__func_0xae4e10, /*
gcc_jit_rvalue *ptr */
                                      NULL, /* gcc_jit_location *loc */
                                      field_p_0xacf1d0); /*
gcc_jit_field *field */

  gcc_jit_lvalue *lvalue__struct_ravi_LClosure___L__ci__func__p__k_0xae5020=
    gcc_jit_rvalue_dereference_field (gcc_jit_lvalue_as_rvalue
(lvalue__struct_ravi_LClosure___L__ci__func__p_0xae4fd0), /*
gcc_jit_rvalue *ptr */
                                      NULL, /* gcc_jit_location *loc */
                                      field_k_0xacdc10); /*
gcc_jit_field *field */