InlineIfLambda not available in net45

Author: wallymathieu

src/FSharpPlus/Builders.fs

@@ -405,7 +405,11 @@ module GenericBuilders =
         member        _.ReturnFrom expr : '``applicative1<applicative2<applicative3<'t>>>`` = expr
         member inline _.Return (x: 'T) : '``Applicative1<Applicative2<Applicative3<'T>>>`` = (pur >> pur >> pur) x
         member inline _.Yield  (x: 'T) : '``Applicative1<Applicative2<Applicative3<'T>>>`` = (pur >> pur >> pur) x
+        #if !NET45
         member inline _.BindReturn (x: '``Applicative1<Applicative2<Applicative3<'T>>>``, [<InlineIfLambda>]f: _ -> _) : '``Applicative1<Applicative2<'U>>`` = (map >> map >> map) f x
+        #else
+        member inline _.BindReturn (x: '``Applicative1<Applicative2<Applicative3<'T>>>``, f: _ -> _) : '``Applicative1<Applicative2<'U>>`` = (map >> map >> map) f x
+        #endif
         member inline _.MergeSources  (t1, t2)     : '``Applicative1<Applicative2<Applicative3<'T>>>`` = (map2 >> map2 >> map2) tuple2 t1 t2
         member inline _.MergeSources3 (t1, t2, t3) : '``Applicative1<Applicative2<Applicative3<'T>>>`` = (map3 >> map3 >> map3) tuple3 t1 t2 t3
         member        _.Run x : '``Applicative1<Applicative2<Applicative3<'T>>>`` = x

src/FSharpPlus/Operators.fs

@@ -58,7 +58,11 @@ module Operators =
     /// Executes a side-effect function and returns the original input value. Same as 'tap' but with arguments flipped.
     /// </summary>
     /// <category index="0">Common Combinators</category>
+    #if !NET45
     let inline (|-) source ([<InlineIfLambda>]f: 'T -> unit) = f source; source
+    #else
+    let inline (|-) source (f: 'T -> unit) = f source; source
+    #endif
 
     /// <summary>
     /// Executes a side-effect function and returns the original input value.