eolian: fix incorrect doxygen param generation

The first param on methods was skipped for some reason.

@fix

src/bin/eolian/docs_generator.c

@@ -382,11 +382,6 @@ docs_generate_function(const Eolian_Function *fid, Eolian_Function_Type ftype,
    if (ftype == EOLIAN_METHOD)
      {
         itr = eolian_function_parameters_get(fid);
-        if (!itr || !eina_iterator_next(itr, (void**)&par))
-          {
-             eina_iterator_free(itr);
-             itr = NULL;
-          }
      }
    else
      {
@@ -399,7 +394,7 @@ docs_generate_function(const Eolian_Function *fid, Eolian_Function_Type ftype,
          }
      }
 
-   if (itr && !eina_iterator_next(itr, (void**)&par))
+   if (!itr || !eina_iterator_next(itr, (void**)&par))
      {
         eina_iterator_free(itr);
         itr = NULL;

src/tests/eolian/data/class_simple_ref_eo.h

@@ -53,6 +53,7 @@ EOAPI void evas_obj_simple_b_set(Eo *obj);
 /**
  * @brief comment foo
  *
+ * @param[in] a a
  * @param[in,out] b
  * @param[out] c
  * @param[in] d

src/tests/eolian/data/class_simple_ref_legacy.h

@@ -44,6 +44,7 @@ EAPI void evas_object_simple_b_set(Class_Simple *obj);
 /**
  * @brief comment foo
  *
+ * @param[in] a a
  * @param[in,out] b
  * @param[out] c
  * @param[in] d

src/tests/eolian/data/docs_ref.h

@@ -108,6 +108,7 @@ EOAPI int docs_prop_get(const Eo *obj);
 /**
  * @brief Method documentation.
  *
+ * @param[in] a Param documentation.
  * @param[out] b
  * @param[out] c Another param documentation.
  *

src/tests/eolian/data/docs_ref_legacy.h

@@ -105,6 +105,7 @@ EAPI int docs_prop_get(const Docs *obj);
 /**
  * @brief Method documentation.
  *
+ * @param[in] a Param documentation.
  * @param[out] b
  * @param[out] c Another param documentation.
  *