feat(51163): show QF to fill in the missing properties for the mapped…

… type. (#51165)

src/services/codefixes/fixAddMissingMember.ts

@@ -178,7 +178,7 @@ namespace ts.codefix {
             const argIndex = findIndex(parent.parent.arguments, arg => arg === parent);
             if (argIndex < 0) return undefined;
 
-            const signature = singleOrUndefined(checker.getSignaturesOfType(checker.getTypeAtLocation(parent.parent.expression), SignatureKind.Call));
+            const signature = checker.getResolvedSignature(parent.parent);
             if (!(signature && signature.declaration && signature.parameters[argIndex])) return undefined;
 
             const param = signature.parameters[argIndex].valueDeclaration;

tests/cases/fourslash/codeFixAddMissingProperties24.ts

@@ -0,0 +1,27 @@
+/// <reference path="fourslash.ts" />
+
+////interface A {
+////    a: number;
+////    b: string;
+////}
+////interface B {
+////    c: boolean;
+////}
+////interface C {
+////    a: A;
+////    b: B;
+////}
+////function f<T extends keyof C>(type: T, obj: C[T]): string {
+////    return "";
+////}
+////[|f("a", {});|]
+
+verify.codeFix({
+    index: 0,
+    description: ts.Diagnostics.Add_missing_properties.message,
+    newRangeContent:
+`f("a", {
+    a: 0,
+    b: ""
+});`,
+});