Use a _bridgeable suffix for newly introduced fast bridging functions. NFC.

Dave explained that stdlib usually uses the suffix notation in such cases. This change follows his advice.

Swift SVN r27177

Author: swiftix

include/swift/AST/KnownDecls.def

@@ -58,10 +58,10 @@ FUNC_DECL(ConditionallyBridgeFromObjectiveC,
 FUNC_DECL(BecomeNSError,
           "_becomeNSError")
 
-FUNC_DECL(KnownForceBridgeFromObjectiveC,
-          "_knownForceBridgeFromObjectiveC")
-FUNC_DECL(KnownConditionallyBridgeFromObjectiveC,
-          "_knownConditionallyBridgeFromObjectiveC")
+FUNC_DECL(ForceBridgeFromObjectiveCBridgeable,
+          "_forceBridgeFromObjectiveC_bridgeable")
+FUNC_DECL(ConditionallyBridgeFromObjectiveCBridgeable,
+          "_conditionallyBridgeFromObjectiveC_bridgeable")
 
 FUNC_DECL(DidEnterMain, "_didEnterMain")
 FUNC_DECL(DiagnoseUnexpectedNilOptional, "_diagnoseUnexpectedNilOptional")

lib/SILPasses/Utils/Local.cpp

@@ -778,9 +778,10 @@ static Type getCastFromObjC(SILModule &M, CanType source, CanType target) {
   return BridgedTy.getValue();
 }
 
-/// Create a call of _forceBridgeFromObjectiveC or
-/// _knownConditionallyBridgeFromObjectiveC  which converts an an ObjC instance
-/// into a corresponding Swift type, conforming to  _ObjectiveCBridgeable.
+/// Create a call of _forceBridgeFromObjectiveC_bridgeable or
+/// _conditionallyBridgeFromObjectiveC_bridgeable  which converts an an ObjC
+/// instance into a corresponding Swift type, conforming to
+/// _ObjectiveCBridgeable.
 SILInstruction *
 CastOptimizer::
 optimizeBridgedObjCToSwiftCast(SILInstruction *Inst,
@@ -836,7 +837,7 @@ optimizeBridgedObjCToSwiftCast(SILInstruction *Inst,
 
   // Now emit the a cast from the casted ObjC object into a target type.
   // This is done by means of calling _forceBridgeFromObjectiveC or
-  // _knownConditionallyBridgeFromObjectiveC from the Target type.
+  // _conditionallyBridgeFromObjectiveC_birdgeable from the Target type.
   // Lookup the required function in the Target type.
 
   // Lookup the _ObjectiveCBridgeable protocol.
@@ -854,8 +855,8 @@ optimizeBridgedObjCToSwiftCast(SILInstruction *Inst,
   // to _BridgedToObjectiveC can be proven.
   FuncDecl *BridgeFuncDecl =
       isConditional
-          ? M.getASTContext().getKnownConditionallyBridgeFromObjectiveC(nullptr)
-          : M.getASTContext().getKnownForceBridgeFromObjectiveC(nullptr);
+          ? M.getASTContext().getConditionallyBridgeFromObjectiveCBridgeable(nullptr)
+          : M.getASTContext().getForceBridgeFromObjectiveCBridgeable(nullptr);
 
   assert(BridgeFuncDecl && "_forceBridgeFromObjectiveC should exist");
 

lib/Sema/CSApply.cpp

@@ -1483,8 +1483,8 @@ namespace {
         // Retrieve the  bridging operation to be used if a static conformance
         // to _BridgedToObjectiveC can be proven.
         fn = conditional
-                 ? tc.Context.getKnownConditionallyBridgeFromObjectiveC(&tc)
-                 : tc.Context.getKnownForceBridgeFromObjectiveC(&tc);
+                 ? tc.Context.getConditionallyBridgeFromObjectiveCBridgeable(&tc)
+                 : tc.Context.getForceBridgeFromObjectiveCBridgeable(&tc);
       } else {
         // Retrieve the  bridging operation to be used if a static conformance
         // to _BridgedToObjectiveC cannot be proven.

stdlib/public/core/BridgeObjectiveC.swift

@@ -145,8 +145,8 @@ public func _forceBridgeFromObjectiveC<T>(x: AnyObject, _: T.Type) -> T {
 
 /// Convert `x` from its Objective-C representation to its Swift
 /// representation.
-@asmname("_knownForceBridgeFromObjectiveC")
-public func _knownForceBridgeFromObjectiveC<T:_ObjectiveCBridgeable>(x: T._ObjectiveCType, _: T.Type) -> T {
+@asmname("_forceBridgeFromObjectiveC_bridgeable")
+public func _forceBridgeFromObjectiveC_bridgeable<T:_ObjectiveCBridgeable>(x: T._ObjectiveCType, _: T.Type) -> T {
   var result: T?
   T._forceBridgeFromObjectiveC(x, result: &result)
   return result!
@@ -181,8 +181,8 @@ public func _conditionallyBridgeFromObjectiveC<T>(
 
 /// Attempt to convert `x` from its Objective-C representation to its Swift
 /// representation.
-@asmname("_knownConditionallyBridgeFromObjectiveC")
-public func _knownConditionallyBridgeFromObjectiveC<T:_ObjectiveCBridgeable>(
+@asmname("_conditionallyBridgeFromObjectiveC_bridgeable")
+public func _conditionallyBridgeFromObjectiveC_bridgeable<T:_ObjectiveCBridgeable>(
   x: T._ObjectiveCType,
   _: T.Type
 ) -> T? {