op_Pipe precedence too low

[GoogleCodeExporter]

e.g. decompile <@ 2 |> id = 2 @> is

"(2 |> id) = 2"

but should be

"2 |> id = 2"

since |> and = have the same precedence are are left associative.

implementation note: see symbolicOps table in ExtraReflection.fs

Original issue reported on code.google.com by stephen....@gmail.com on 17 Jun 2015 at 4:38