[stdlib] Removed &/

We believe this operator is not useful.

rdar://problem/17926954

Swift SVN r25159

Author: mxswd

stdlib/core/IntegerArithmetic.swift.gyb

@@ -57,11 +57,13 @@ public func ${op} <T: _IntegerArithmeticType>(lhs: T, rhs: T) -> T {
   return _overflowChecked(T.${name}WithOverflow(lhs, rhs))
 }
 
+% if op != '/':
 /// ${name} `lhs` and `rhs`, silently discarding any overflow.
 @transparent
 public func &${op} <T: _IntegerArithmeticType>(lhs: T, rhs: T) -> T {
   return T.${name}WithOverflow(lhs, rhs).0
 }
+% end
 
 /// ${name} `lhs` and `rhs` and store the result in `lhs`, trapping in
 /// case of arithmetic overflow (except in -Ounchecked builds).

stdlib/core/ManagedBuffer.swift

@@ -238,7 +238,7 @@ public struct ManagedBufferPointer<Value, Element> : Equatable {
   /// idea to store this information in the "value" area when
   /// an instance is created.
   public var allocatedElementCount: Int {
-    return (_allocatedByteCount &- _My._elementOffset) &/ strideof(Element)
+    return (_allocatedByteCount &- _My._elementOffset) / strideof(Element)
   }
 
   /// Call `body` with an `UnsafeMutablePointer` to the stored

stdlib/core/Policy.swift

@@ -371,7 +371,6 @@ infix operator >> { associativity none precedence 160 }
 infix operator   * { associativity left precedence 150 }
 infix operator  &* { associativity left precedence 150 }
 infix operator   / { associativity left precedence 150 }
-infix operator  &/ { associativity left precedence 150 }
 infix operator   % { associativity left precedence 150 }
 infix operator  &% { associativity left precedence 150 }
 infix operator   & { associativity left precedence 150 }

utils/SwiftIntTypes.py

@@ -89,7 +89,7 @@ def numeric_type_names_Macintosh_only():
 # Swift_Programming_Language/Expressions.html
 
 def all_integer_binary_operator_names():
-    return ['<<', '>>', '&*', '&/', '&%', '&', '&+', '&-', '|', '^']
+    return ['<<', '>>', '&*', '&%', '&', '&+', '&-', '|', '^']
 
 def all_integer_or_real_binary_operator_names():
     return ['*', '/', '%', '+', '-', '..<', '...']