fix a valgrind problem I noticed while developing another patch,

if a decl is invalid, it isn't added to the Decls array, so we
need to pass in Decls.size() to avoid reading uninit memory.

llvm-svn: 68913

clang/lib/Sema/SemaDecl.cpp

@@ -2620,7 +2620,7 @@ Sema::DeclGroupPtrTy Sema::FinalizeDeclaratorGroup(Scope *S, DeclPtrTy *Group,
     }
   }
   return DeclGroupPtrTy::make(DeclGroupRef::Create(Context,
-                                                   &Decls[0], NumDecls));
+                                                   &Decls[0], Decls.size()));
 }
 
 

clang/test/Sema/decl-invalid.c

@@ -8,6 +8,10 @@ typedef union <anonymous> __mbstate_t;  // expected-error {{declaration of anony
 void x(); 
 int a() {
   int r[x()];  // expected-error {{size of array has non-integer type 'void'}}
+
+  static y ?; // expected-error{{unknown type name 'y'}} \
+                 expected-error{{expected identifier or '('}} \
+                 expected-error{{expected ';' at end of declaration}}
 }
 
 int; // expected-error {{declaration does not declare anything}}