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Merge pull request #6634 from Microsoft/port_6628

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Port #6628 into release 1.8
This commit is contained in:
Vladimir Matveev
2016-01-27 11:02:07 -08:00
parent 7ca990cf46 ef615bc0b6
commit a5a9655e87
5 changed files with 37 additions and 1 deletions
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2
src/compiler/checker.ts
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@@ -4285,7 +4285,7 @@ namespace ts {
function hasConstraintReferenceTo(type: Type, target: TypeParameter): boolean {
let checked: Type[];
while (type && type.flags & TypeFlags.TypeParameter && !contains(checked, type)) {
while (type && !(type.flags & TypeFlags.ThisType) && type.flags & TypeFlags.TypeParameter && !contains(checked, type)) {
if (type === target) {
return true;
}