unify c generator naming

samples/c_code_generation.c

@@ -29,7 +29,7 @@ int main(int argument_count, char **arguments)
     {
         if(MD_NodeHasTag(node, MD_S8Lit("struct")))
         {
-            MD_OutputTree_C_Struct(stdout, node);
+            MD_C_Generate_Struct(stdout, node);
         }
     }
     printf("\n\n");

samples/namespaced_types/namespaced_types.c

@@ -137,7 +137,7 @@ static void OutputPrefixedType(FILE *f, MD_Map *user_defined_types, MD_String8 p
         I(); 
         OutputType_C_LHS_Namespace(f, user_defined_types, prefix, type);
         fprintf(f, " %.*s", MD_StringExpand(node->string));
-        MD_OutputType_C_RHS(f, type);
+        MD_C_Generate_RHS(f, type);
         
         fprintf(f, ";\n");
     }