[objcmt] When checking whether the subscripting methods are declared use
ObjCInterfaceDec::lookupInstanceMethod to make sure we check categories as well
and update related tests.

rdar://11695288

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158697 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Edit/RewriteObjCFoundationAPI.cpp b/lib/Edit/RewriteObjCFoundationAPI.cpp
index 465f180..feecc70 100644
--- a/lib/Edit/RewriteObjCFoundationAPI.cpp
+++ b/lib/Edit/RewriteObjCFoundationAPI.cpp
@@ -128,7 +128,7 @@
                                        const ObjCMessageExpr *Msg,
                                        const NSAPI &NS,
                                        Commit &commit) {
-  if (!IFace->getInstanceMethod(NS.getObjectAtIndexedSubscriptSelector()))
+  if (!IFace->lookupInstanceMethod(NS.getObjectAtIndexedSubscriptSelector()))
     return false;
   return rewriteToSubscriptGetCommon(Msg, commit);
 }
@@ -137,7 +137,7 @@
                                             const ObjCMessageExpr *Msg,
                                             const NSAPI &NS,
                                             Commit &commit) {
-  if (!IFace->getInstanceMethod(NS.getObjectForKeyedSubscriptSelector()))
+  if (!IFace->lookupInstanceMethod(NS.getObjectForKeyedSubscriptSelector()))
     return false;
   return rewriteToSubscriptGetCommon(Msg, commit);
 }
@@ -151,7 +151,7 @@
   const Expr *Rec = Msg->getInstanceReceiver();
   if (!Rec)
     return false;
-  if (!IFace->getInstanceMethod(NS.getSetObjectAtIndexedSubscriptSelector()))
+  if (!IFace->lookupInstanceMethod(NS.getSetObjectAtIndexedSubscriptSelector()))
     return false;
 
   SourceRange MsgRange = Msg->getSourceRange();
@@ -183,7 +183,7 @@
   const Expr *Rec = Msg->getInstanceReceiver();
   if (!Rec)
     return false;
-  if (!IFace->getInstanceMethod(NS.getSetObjectForKeyedSubscriptSelector()))
+  if (!IFace->lookupInstanceMethod(NS.getSetObjectForKeyedSubscriptSelector()))
     return false;
 
   SourceRange MsgRange = Msg->getSourceRange();
diff --git a/test/ARCMT/objcmt-subscripting-literals-in-arc.m b/test/ARCMT/objcmt-subscripting-literals-in-arc.m
index fd100ca..4d94162 100644
--- a/test/ARCMT/objcmt-subscripting-literals-in-arc.m
+++ b/test/ARCMT/objcmt-subscripting-literals-in-arc.m
@@ -12,6 +12,9 @@
 + (id)alloc;
 @end
 
+@protocol NSCopying
+@end
+
 @interface NSString : NSObject
 + (id)stringWithString:(NSString *)string;
 - (id)initWithString:(NSString *)aString;
@@ -19,7 +22,10 @@
 
 @interface NSArray : NSObject
 - (id)objectAtIndex:(unsigned long)index;
-- (id)objectAtIndexedSubscript:(int)index;
+@end
+
+@interface NSArray (NSExtendedArray)
+- (id)objectAtIndexedSubscript:(unsigned)idx;
 @end
 
 @interface NSArray (NSArrayCreation)
@@ -32,16 +38,21 @@
 - (id)initWithObjects:(const id [])objects count:(unsigned long)cnt;
 - (id)initWithObjects:(id)firstObj, ...;
 - (id)initWithArray:(NSArray *)array;
-
-- (id)objectAtIndex:(unsigned long)index;
 @end
 
 @interface NSMutableArray : NSArray
 - (void)replaceObjectAtIndex:(unsigned long)index withObject:(id)anObject;
-- (void)setObject:(id)object atIndexedSubscript:(int)index;
+@end
+
+@interface NSMutableArray (NSExtendedMutableArray)
+- (void)setObject:(id)obj atIndexedSubscript:(unsigned)idx;
 @end
 
 @interface NSDictionary : NSObject
+- (id)objectForKey:(id)aKey;
+@end
+
+@interface NSDictionary (NSExtendedDictionary)
 - (id)objectForKeyedSubscript:(id)key;
 @end
 
@@ -57,13 +68,14 @@
 - (id)initWithObjectsAndKeys:(id)firstObject, ...;
 - (id)initWithDictionary:(NSDictionary *)otherDictionary;
 - (id)initWithObjects:(NSArray *)objects forKeys:(NSArray *)keys;
-
-- (id)objectForKey:(id)aKey;
 @end
 
 @interface NSMutableDictionary : NSDictionary
 - (void)setObject:(id)anObject forKey:(id)aKey;
-- (void)setObject:(id)object forKeyedSubscript:(id)key;
+@end
+
+@interface NSMutableDictionary (NSExtendedMutableDictionary)
+- (void)setObject:(id)obj forKeyedSubscript:(id <NSCopying>)key;
 @end
 
 @interface NSNumber : NSObject
diff --git a/test/ARCMT/objcmt-subscripting-literals-in-arc.m.result b/test/ARCMT/objcmt-subscripting-literals-in-arc.m.result
index 4a65a23..6f7a723 100644
--- a/test/ARCMT/objcmt-subscripting-literals-in-arc.m.result
+++ b/test/ARCMT/objcmt-subscripting-literals-in-arc.m.result
@@ -12,6 +12,9 @@
 + (id)alloc;
 @end
 
+@protocol NSCopying
+@end
+
 @interface NSString : NSObject
 + (id)stringWithString:(NSString *)string;
 - (id)initWithString:(NSString *)aString;
@@ -19,7 +22,10 @@
 
 @interface NSArray : NSObject
 - (id)objectAtIndex:(unsigned long)index;
-- (id)objectAtIndexedSubscript:(int)index;
+@end
+
+@interface NSArray (NSExtendedArray)
+- (id)objectAtIndexedSubscript:(unsigned)idx;
 @end
 
 @interface NSArray (NSArrayCreation)
@@ -32,16 +38,21 @@
 - (id)initWithObjects:(const id [])objects count:(unsigned long)cnt;
 - (id)initWithObjects:(id)firstObj, ...;
 - (id)initWithArray:(NSArray *)array;
-
-- (id)objectAtIndex:(unsigned long)index;
 @end
 
 @interface NSMutableArray : NSArray
 - (void)replaceObjectAtIndex:(unsigned long)index withObject:(id)anObject;
-- (void)setObject:(id)object atIndexedSubscript:(int)index;
+@end
+
+@interface NSMutableArray (NSExtendedMutableArray)
+- (void)setObject:(id)obj atIndexedSubscript:(unsigned)idx;
 @end
 
 @interface NSDictionary : NSObject
+- (id)objectForKey:(id)aKey;
+@end
+
+@interface NSDictionary (NSExtendedDictionary)
 - (id)objectForKeyedSubscript:(id)key;
 @end
 
@@ -57,13 +68,14 @@
 - (id)initWithObjectsAndKeys:(id)firstObject, ...;
 - (id)initWithDictionary:(NSDictionary *)otherDictionary;
 - (id)initWithObjects:(NSArray *)objects forKeys:(NSArray *)keys;
-
-- (id)objectForKey:(id)aKey;
 @end
 
 @interface NSMutableDictionary : NSDictionary
 - (void)setObject:(id)anObject forKey:(id)aKey;
-- (void)setObject:(id)object forKeyedSubscript:(id)key;
+@end
+
+@interface NSMutableDictionary (NSExtendedMutableDictionary)
+- (void)setObject:(id)obj forKeyedSubscript:(id <NSCopying>)key;
 @end
 
 @interface NSNumber : NSObject
diff --git a/test/ARCMT/objcmt-subscripting-literals.m b/test/ARCMT/objcmt-subscripting-literals.m
index 6d626c4..e9ed788 100644
--- a/test/ARCMT/objcmt-subscripting-literals.m
+++ b/test/ARCMT/objcmt-subscripting-literals.m
@@ -12,6 +12,9 @@
 + (id)alloc;
 @end
 
+@protocol NSCopying
+@end
+
 @interface NSString : NSObject
 + (id)stringWithString:(NSString *)string;
 - (id)initWithString:(NSString *)aString;
@@ -19,7 +22,10 @@
 
 @interface NSArray : NSObject
 - (id)objectAtIndex:(unsigned long)index;
-- (id)objectAtIndexedSubscript:(int)index;
+@end
+
+@interface NSArray (NSExtendedArray)
+- (id)objectAtIndexedSubscript:(unsigned)idx;
 @end
 
 @interface NSArray (NSArrayCreation)
@@ -32,16 +38,21 @@
 - (id)initWithObjects:(const id [])objects count:(unsigned long)cnt;
 - (id)initWithObjects:(id)firstObj, ...;
 - (id)initWithArray:(NSArray *)array;
-
-- (id)objectAtIndex:(unsigned long)index;
 @end
 
 @interface NSMutableArray : NSArray
 - (void)replaceObjectAtIndex:(unsigned long)index withObject:(id)anObject;
-- (void)setObject:(id)object atIndexedSubscript:(int)index;
+@end
+
+@interface NSMutableArray (NSExtendedMutableArray)
+- (void)setObject:(id)obj atIndexedSubscript:(unsigned)idx;
 @end
 
 @interface NSDictionary : NSObject
+- (id)objectForKey:(id)aKey;
+@end
+
+@interface NSDictionary (NSExtendedDictionary)
 - (id)objectForKeyedSubscript:(id)key;
 @end
 
@@ -57,13 +68,14 @@
 - (id)initWithObjectsAndKeys:(id)firstObject, ...;
 - (id)initWithDictionary:(NSDictionary *)otherDictionary;
 - (id)initWithObjects:(NSArray *)objects forKeys:(NSArray *)keys;
-
-- (id)objectForKey:(id)aKey;
 @end
 
 @interface NSMutableDictionary : NSDictionary
 - (void)setObject:(id)anObject forKey:(id)aKey;
-- (void)setObject:(id)object forKeyedSubscript:(id)key;
+@end
+
+@interface NSMutableDictionary (NSExtendedMutableDictionary)
+- (void)setObject:(id)obj forKeyedSubscript:(id <NSCopying>)key;
 @end
 
 @interface NSNumber : NSObject
diff --git a/test/ARCMT/objcmt-subscripting-literals.m.result b/test/ARCMT/objcmt-subscripting-literals.m.result
index a4eca6a..4e49c5e 100644
--- a/test/ARCMT/objcmt-subscripting-literals.m.result
+++ b/test/ARCMT/objcmt-subscripting-literals.m.result
@@ -12,6 +12,9 @@
 + (id)alloc;
 @end
 
+@protocol NSCopying
+@end
+
 @interface NSString : NSObject
 + (id)stringWithString:(NSString *)string;
 - (id)initWithString:(NSString *)aString;
@@ -19,7 +22,10 @@
 
 @interface NSArray : NSObject
 - (id)objectAtIndex:(unsigned long)index;
-- (id)objectAtIndexedSubscript:(int)index;
+@end
+
+@interface NSArray (NSExtendedArray)
+- (id)objectAtIndexedSubscript:(unsigned)idx;
 @end
 
 @interface NSArray (NSArrayCreation)
@@ -32,16 +38,21 @@
 - (id)initWithObjects:(const id [])objects count:(unsigned long)cnt;
 - (id)initWithObjects:(id)firstObj, ...;
 - (id)initWithArray:(NSArray *)array;
-
-- (id)objectAtIndex:(unsigned long)index;
 @end
 
 @interface NSMutableArray : NSArray
 - (void)replaceObjectAtIndex:(unsigned long)index withObject:(id)anObject;
-- (void)setObject:(id)object atIndexedSubscript:(int)index;
+@end
+
+@interface NSMutableArray (NSExtendedMutableArray)
+- (void)setObject:(id)obj atIndexedSubscript:(unsigned)idx;
 @end
 
 @interface NSDictionary : NSObject
+- (id)objectForKey:(id)aKey;
+@end
+
+@interface NSDictionary (NSExtendedDictionary)
 - (id)objectForKeyedSubscript:(id)key;
 @end
 
@@ -57,13 +68,14 @@
 - (id)initWithObjectsAndKeys:(id)firstObject, ...;
 - (id)initWithDictionary:(NSDictionary *)otherDictionary;
 - (id)initWithObjects:(NSArray *)objects forKeys:(NSArray *)keys;
-
-- (id)objectForKey:(id)aKey;
 @end
 
 @interface NSMutableDictionary : NSDictionary
 - (void)setObject:(id)anObject forKey:(id)aKey;
-- (void)setObject:(id)object forKeyedSubscript:(id)key;
+@end
+
+@interface NSMutableDictionary (NSExtendedMutableDictionary)
+- (void)setObject:(id)obj forKeyedSubscript:(id <NSCopying>)key;
 @end
 
 @interface NSNumber : NSObject