 extension Int {
   func testLexingMethodAfterIntLiteral() {}
   func _0() {}
+  // Hex letters
+  func ffa() {}
   // Hex letters + non hex.
   func describe() {}
   // Hex letters + 'p'.

var fl_m: Float = 0x1.FFFFFEP-2
var fl_n: Float = 0x1.fffffep+2
var fl_o: Float = 0x1.fffffep+ // expected-error {{expected a digit in floating point exponent}}

var if1: Double = 1.0 + 4  // integer literal ok as double.
var if2: Float = 1.0 + 4  // integer literal ok as float.

0o123._0()
0x1FFF._0()

0x1fff.ffa()
0x1FFF.describe()
0x1FFF.eap()
0x1FFF.fpValue()
