Get the verifier to check attributes on calls as well

as on functions.  Make it verify invokes and not just
ordinary calls.  As a (desired) side-effect, it is no
longer legal to have call attributes on arguments that
are being passed to the varargs part of a varargs
function (llvm-as drops them on the floor anyway).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45286 91177308-0d34-0410-b5e6-96231b3b80d8

test/Verifier/2007-12-21-InvokeParamAttrs.ll

@@ -0,0 +1,10 @@
+; RUN: not llvm-as < %s
+
+declare void @foo(i8*)
+
+define void @bar() {
+	invoke void @foo(i8* signext null)
+			to label %r unwind label %r
+r:
+	ret void
+}