Run namespace member resolution order tests single-threaded

Author: Andarist

tsc/testdata/tests/cases/compiler/namespaceMembersResolutionOrderExportStar.ts

@@ -6,6 +6,7 @@
 // @declaration: true
 // @outDir: /out
 // @noImplicitReferences: true
+// @singleThreaded: true
 
 // @Filename: /ma.js
 export { v as pa } from "./xa";

tsc/testdata/tests/cases/compiler/noFlakyDiagnosticsNamespaceMembersResolutionOrder.ts

@@ -6,6 +6,7 @@
 // @declaration: true
 // @outDir: /out
 // @noImplicitReferences: true
+// @singleThreaded: true
 
 // @Filename: /ma.js
 export { v as pa } from "./xa";

tsc/testdata/tests/cases/compiler/noFlakyDiagnosticsNamespaceMembersResolutionOrderReexportedTypes.ts

@@ -7,6 +7,7 @@
 // @declaration: true
 // @outDir: /out
 // @noImplicitReferences: true
+// @singleThreaded: true
 
 // @Filename: /ma.js
 export { v as pa } from "./xa";