Add the .getNonPrimitiveType() method to the TypeChecker (microsoft#61562)

Author: mrazauskas

src/compiler/checker.ts

@@ -1839,6 +1839,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
         getNullType: () => nullType,
         getESSymbolType: () => esSymbolType,
         getNeverType: () => neverType,
+        getNonPrimitiveType: () => nonPrimitiveType,
         getOptionalType: () => optionalType,
         getPromiseType: () => getGlobalPromiseType(/*reportErrors*/ false),
         getPromiseLikeType: () => getGlobalPromiseLikeType(/*reportErrors*/ false),

src/compiler/types.ts

@@ -5296,6 +5296,10 @@ export interface TypeChecker {
      * is `never`. Instead, use `type.flags & TypeFlags.Never`.
      */
     getNeverType(): Type;
+    /**
+     * Gets the intrinsic `object` type.
+     */
+    getNonPrimitiveType(): Type;
     /** @internal */ getOptionalType(): Type;
     /** @internal */ getUnionType(types: Type[], subtypeReduction?: UnionReduction): Type;
     /** @internal */ createArrayType(elementType: Type): Type;

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

@@ -6314,6 +6314,10 @@ declare namespace ts {
          * is `never`. Instead, use `type.flags & TypeFlags.Never`.
          */
         getNeverType(): Type;
+        /**
+         * Gets the intrinsic `object` type.
+         */
+        getNonPrimitiveType(): Type;
         /**
          * Returns true if the "source" type is assignable to the "target" type.
          *