[stdlib] init<T : FloatingPoint> ==> init<T : BinaryFloatingPoint>

(cherry picked from commit 5d47a0d)

Author: Maxim Moiseev

stdlib/public/core/Integers.swift.gyb

@@ -1329,7 +1329,7 @@ public protocol BinaryInteger :
   ///     // y == nil
   ///
   /// - Parameter source: A floating-point value to convert to an integer.
-  init?<T : FloatingPoint>(exactly source: T)
+  init?<T : BinaryFloatingPoint>(exactly source: T)
 
   /// Creates an integer from the given floating-point value, rounding toward
   /// zero.
@@ -1347,7 +1347,7 @@ public protocol BinaryInteger :
   ///
   /// - Parameter source: A floating-point value to convert to an integer.
   ///   `source` must be representable in this type after rounding toward zero.
-  init<T : FloatingPoint>(_ source: T)
+  init<T : BinaryFloatingPoint>(_ source: T)
 
   /// Creates a new instance from the given integer.
   ///
@@ -1538,7 +1538,7 @@ extension BinaryInteger {
     self = 0
   }
 
-  public init?<T : FloatingPoint>(exactly source: T) {
+  public init?<T : BinaryFloatingPoint>(exactly source: T) {
     // FIXME(integers): implement
     fatalError()
   }
@@ -2939,7 +2939,7 @@ ${assignmentOperatorComment(x.operator, True)}
 
 extension ${Self} {
   // FIXME(integers): implement me in a less terrible way
-  public init<T : FloatingPoint>(_ source: T) {
+  public init<T : BinaryFloatingPoint>(_ source: T) {
 %   for (FloatType, FloatBits) in [
 %     ('Float', 32), ('Double', 64), ('Float80', 80)]:
 %     if FloatType == 'Float80':

test/Prototypes/BigInt.swift

@@ -142,11 +142,11 @@ public struct _BigInt<Word: FixedWidthInteger & UnsignedInteger> :
     self.init(source)
   }
 
-  public init<T : FloatingPoint>(_ source: T) {
+  public init<T : BinaryFloatingPoint>(_ source: T) {
     fatalError("Not implemented")
   }
 
-  public init?<T : FloatingPoint>(exactly source: T) {
+  public init?<T : BinaryFloatingPoint>(exactly source: T) {
     fatalError("Not implemented")
   }
 
@@ -1197,7 +1197,7 @@ struct Bit : FixedWidthInteger, UnsignedInteger {
     self = value
   }
 
-  init?<T: FloatingPoint>(exactly source: T) {
+  init?<T: BinaryFloatingPoint>(exactly source: T) {
     switch source {
     case T(0): value = 0
     case T(1): value = 1
@@ -1206,7 +1206,7 @@ struct Bit : FixedWidthInteger, UnsignedInteger {
     }
   }
 
-  init<T: FloatingPoint>(_ source: T) {
+  init<T: BinaryFloatingPoint>(_ source: T) {
     self = Bit(exactly: source.rounded(.down))!
   }