Remove the notion of 'unresolved' types entirely.

Unresolved types are a holdover from the old type checker that not
longer have any purpose in the type system.


Swift SVN r6242

lib/AST/ASTDumper.cpp

@@ -721,7 +721,7 @@ public:
 
   void visitIntegerLiteralExpr(IntegerLiteralExpr *E) {
     printCommon(E, "integer_literal_expr") << " value=";
-    if (E->getType().isNull() || E->getType()->isUnresolvedType())
+    if (E->getType().isNull())
       OS << E->getText();
     else
       OS << E->getValue();