Revert r145999. This turned out to be a bad idea. Unfortunately, 'id' is used so profusely

in many APIs and large codebases that this made the deprecated warning trigger happy to
the point of not being useful.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150223 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Sema/Sema.h

@@ -2251,9 +2251,6 @@ public:
   bool CanUseDecl(NamedDecl *D);
   bool DiagnoseUseOfDecl(NamedDecl *D, SourceLocation Loc,
                          const ObjCInterfaceDecl *UnknownObjCClass=0);
-  AvailabilityResult DiagnoseAvailabilityOfDecl(NamedDecl *D, 
-                              SourceLocation Loc,
-                              const ObjCInterfaceDecl *UnknownObjCClass);
   std::string getDeletedOrUnavailableSuffix(const FunctionDecl *FD);
   bool DiagnosePropertyAccessorMismatch(ObjCPropertyDecl *PD,
                                         ObjCMethodDecl *Getter,

lib/Sema/SemaExpr.cpp

@@ -65,8 +65,7 @@ bool Sema::CanUseDecl(NamedDecl *D) {
   return true;
 }
 
-AvailabilityResult 
-Sema::DiagnoseAvailabilityOfDecl(
+static AvailabilityResult DiagnoseAvailabilityOfDecl(Sema &S,
                               NamedDecl *D, SourceLocation Loc,
                               const ObjCInterfaceDecl *UnknownObjCClass) {
   // See if this declaration is unavailable or deprecated.
@@ -85,22 +84,22 @@ Sema::DiagnoseAvailabilityOfDecl(
       break;
             
     case AR_Deprecated:
-      EmitDeprecationWarning(D, Message, Loc, UnknownObjCClass);
+      S.EmitDeprecationWarning(D, Message, Loc, UnknownObjCClass);
       break;
             
     case AR_Unavailable:
-      if (getCurContextAvailability() != AR_Unavailable) {
+      if (S.getCurContextAvailability() != AR_Unavailable) {
         if (Message.empty()) {
           if (!UnknownObjCClass)
-            Diag(Loc, diag::err_unavailable) << D->getDeclName();
+            S.Diag(Loc, diag::err_unavailable) << D->getDeclName();
           else
-            Diag(Loc, diag::warn_unavailable_fwdclass_message) 
+            S.Diag(Loc, diag::warn_unavailable_fwdclass_message) 
               << D->getDeclName();
         }
         else 
-          Diag(Loc, diag::err_unavailable_message) 
+          S.Diag(Loc, diag::err_unavailable_message) 
             << D->getDeclName() << Message;
-          Diag(D->getLocation(), diag::note_unavailable_here) 
+          S.Diag(D->getLocation(), diag::note_unavailable_here) 
           << isa<FunctionDecl>(D) << false;
       }
       break;
@@ -155,7 +154,7 @@ bool Sema::DiagnoseUseOfDecl(NamedDecl *D, SourceLocation Loc,
       return true;
     }
   }
-  DiagnoseAvailabilityOfDecl(D, Loc, UnknownObjCClass);
+  DiagnoseAvailabilityOfDecl(*this, D, Loc, UnknownObjCClass);
 
   // Warn if this is used but marked unused.
   if (D->hasAttr<UnusedAttr>())

lib/Sema/SemaExprObjC.cpp

@@ -1279,9 +1279,6 @@ ExprResult Sema::BuildInstanceMessage(Expr *Receiver,
         Method = LookupFactoryMethodInGlobalPool(Sel, 
                                                  SourceRange(LBracLoc, RBracLoc),
                                                  receiverIsId);
-      if (Method)
-        DiagnoseAvailabilityOfDecl(Method, Loc, 0);
-      
     } else if (ReceiverType->isObjCClassType() ||
                ReceiverType->isObjCQualifiedClassType()) {
       // Handle messages to Class.

test/ARCMT/checking.m

@@ -15,9 +15,9 @@ typedef int BOOL;
 typedef unsigned NSUInteger;
 
 @protocol NSObject
-- (id)retain NS_AUTOMATED_REFCOUNT_UNAVAILABLE; // expected-note {{unavailable here}}
+- (id)retain NS_AUTOMATED_REFCOUNT_UNAVAILABLE;
 - (NSUInteger)retainCount NS_AUTOMATED_REFCOUNT_UNAVAILABLE;
-- (oneway void)release NS_AUTOMATED_REFCOUNT_UNAVAILABLE; // expected-note 4 {{unavailable here}}
+- (oneway void)release NS_AUTOMATED_REFCOUNT_UNAVAILABLE;
 - (id)autorelease NS_AUTOMATED_REFCOUNT_UNAVAILABLE;
 @end
 
@@ -75,20 +75,16 @@ id global_foo;
 
 void test1(A *a, BOOL b, struct UnsafeS *unsafeS) {
   [[a delegate] release]; // expected-error {{it is not safe to remove 'retain' message on the result of a 'delegate' message; the object that was passed to 'setDelegate:' may not be properly retained}} \
-                          // expected-error {{ARC forbids explicit message send}} \
-                          // expected-error {{unavailable}}
+                          // expected-error {{ARC forbids explicit message send}}
   [a.delegate release]; // expected-error {{it is not safe to remove 'retain' message on the result of a 'delegate' message; the object that was passed to 'setDelegate:' may not be properly retained}} \
-                        // expected-error {{ARC forbids explicit message send}} \
-                        // expected-error {{unavailable}}
+                        // expected-error {{ARC forbids explicit message send}}
   [unsafeS->unsafeObj retain]; // expected-error {{it is not safe to remove 'retain' message on an __unsafe_unretained type}} \
                                // expected-error {{ARC forbids explicit message send}}
   id foo = [unsafeS->unsafeObj retain]; // no warning.
   [global_foo retain]; // expected-error {{it is not safe to remove 'retain' message on a global variable}} \
-                       // expected-error {{ARC forbids explicit message send}} \
-                       // expected-error {{unavailable}}
+                       // expected-error {{ARC forbids explicit message send}}
   [global_foo release]; // expected-error {{it is not safe to remove 'release' message on a global variable}} \
-                        // expected-error {{ARC forbids explicit message send}} \
-                        // expected-error {{unavailable}}
+                        // expected-error {{ARC forbids explicit message send}}
   [a dealloc];
   [a retain];
   [a retainCount]; // expected-error {{ARC forbids explicit message send of 'retainCount'}}
@@ -302,8 +298,7 @@ void rdar9491791(int p) {
 
 // rdar://9504750
 void rdar9504750(id p) {
-  RELEASE_MACRO(p); // expected-error {{ARC forbids explicit message send of 'release'}} \
-                    // expected-error {{unavailable}}
+  RELEASE_MACRO(p); // expected-error {{ARC forbids explicit message send of 'release'}}
 }
 
 // rdar://8939557

test/SemaObjC/attr-deprecated.m

@@ -53,7 +53,7 @@ void t1(A *a)
 
 void t2(id a)
 {
-  [a f]; // expected-warning {{'f' is deprecated}}
+  [a f];
 }
 
 void t3(A<P>* a)
@@ -121,20 +121,3 @@ void test(Test2 *foo) {
 __attribute__((deprecated))
 @interface A(Blah) // expected-error{{attributes may not be specified on a category}}
 @end
-
-// rdar://10459930
-
-@class NSString;
-@interface NSDocumentController
-{
-  id iv;
-}
-- (void)fileExtensionsFromType:(NSString *)typeName __attribute__((deprecated));
-@end
-
-@implementation NSDocumentController
-- (void) Meth {
-  [iv fileExtensionsFromType:@"public.text"]; // expected-warning {{'fileExtensionsFromType:' is deprecated}}
-}
-- (void)fileExtensionsFromType:(NSString *)typeName {}
-@end