Disable apis for tsc --build till we have the actual API figured out with tests

src/compiler/tsbuild.ts

@@ -1,3 +1,5 @@
+// Currently we do not want to expose API for build, we should work out the API, and then expose it just like we did for builder/watch
+/*@internal*/
 namespace ts {
     const minimumDate = new Date(-8640000000000000);
     const maximumDate = new Date(8640000000000000);

src/compiler/types.ts

@@ -4714,6 +4714,7 @@ namespace ts {
         verticalTab = 0x0B,           // \v
     }
 
+    /*@internal*/
     export interface UpToDateHost {
         fileExists(fileName: string): boolean;
         getModifiedTime(fileName: string): Date | undefined;