[stdlib] Correct test for NSNumber bridging

Author: natecook1000

test/stdlib/TestNSNumberBridging.swift

@@ -658,16 +658,12 @@ func testNSNumberBridgeFromUInt() {
             let uint = (number!) as? UInt
             expectEqual(UInt(exactly: interestingValue), uint)
 
-            // these are disabled because of https://bugs.swift.org/browse/SR-4634
-            if uint! != UInt(UInt32.max) && uint! != UInt(UInt32.max - 1) {
-                let float = (number!) as? Float
-                let expectedFloat = Float(uint!)
-                testFloat(expectedFloat, float)
-            }
-            
-            
+            let float = (number!) as? Float
+            let expectedFloat = Float(exactly: uint!)
+            testFloat(expectedFloat, float)
+
             let double = (number!) as? Double
-            let expectedDouble = Double(uint!)
+            let expectedDouble = Double(exactly: uint!)
             testDouble(expectedDouble, double)
         }
         let bridged = interestingValue as NSNumber