Fix a misleading comment.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62031 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGObjC.cpp b/lib/CodeGen/CGObjC.cpp
index ef7b142..a285d75 100644
--- a/lib/CodeGen/CGObjC.cpp
+++ b/lib/CodeGen/CGObjC.cpp
@@ -136,8 +136,8 @@
 // having a GenerateFunction which takes the body Stmt.
 
 /// GenerateObjCGetter - Generate an Objective-C property getter
-/// function. The given Decl must be either an ObjCCategoryImplDecl
-/// or an ObjCImplementationDecl.
+/// function. The given Decl must be an ObjCImplementationDecl. @synthesize
+/// is illegal within a category.
 void CodeGenFunction::GenerateObjCGetter(ObjCImplementationDecl *IMP,
                                          const ObjCPropertyImplDecl *PID) {
   ObjCIvarDecl *Ivar = PID->getPropertyIvarDecl();
@@ -206,8 +206,8 @@
 }
 
 /// GenerateObjCSetter - Generate an Objective-C property setter
-/// function. The given Decl must be either an ObjCCategoryImplDecl
-/// or an ObjCImplementationDecl.
+/// function. The given Decl must be an ObjCImplementationDecl. @synthesize
+/// is illegal within a category.
 void CodeGenFunction::GenerateObjCSetter(ObjCImplementationDecl *IMP,
                                          const ObjCPropertyImplDecl *PID) {
   ObjCIvarDecl *Ivar = PID->getPropertyIvarDecl();