Update API (#24966)

Author: Andy Hanson

tests/baselines/reference/api/tsserverlibrary.d.ts

@@ -2566,6 +2566,7 @@ declare namespace ts {
         getDeclaredTypeOfSymbol(symbol: Symbol): Type;
         getPropertiesOfType(type: Type): Symbol[];
         getPropertyOfType(type: Type, propertyName: string): Symbol | undefined;
+        getTypeOfPropertyOfType(type: Type, propertyName: string): Type | undefined;
         getIndexInfoOfType(type: Type, kind: IndexKind): IndexInfo | undefined;
         getSignaturesOfType(type: Type, kind: SignatureKind): ReadonlyArray<Signature>;
         getIndexTypeOfType(type: Type, kind: IndexKind): Type | undefined;
@@ -2708,6 +2709,11 @@ declare namespace ts {
         getSymbolCount(): number;
         getTypeCount(): number;
         isArrayLikeType(type: Type): boolean;
+        /**
+         * True if `contextualType` should not be considered for completions because
+         * e.g. it specifies `kind: "a"` and obj has `kind: "b"`.
+         */
+        isTypeInvalidDueToUnionDiscriminant(contextualType: Type, obj: ObjectLiteralExpression): boolean;
         /**
          * For a union, will include a property if it's defined in *any* of the member types.
          * So for `{ a } | { b }`, this will include both `a` and `b`.