Improve support for diagnostics from runtime compiler APIs (#3911)

- Exports diagnostic items from `diagnostics.ts` which are missing at
  runtime.
- Returns an array of diagnostics, instead of an object with a property
  of `items`.  This is because of the way Rust deals with certain
  structures, and shouldn't be exposed in the APIs.

1 files changed, 2 insertions, 2 deletions

diff --git a/cli/js/lib.deno.ns.d.ts b/cli/js/lib.deno.ns.d.ts
index 6d06a8cd6..4bbbf6320 100644
--- a/cli/js/lib.deno.ns.d.ts
+++ b/cli/js/lib.deno.ns.d.ts
@@ -2093,7 +2093,7 @@ declare namespace Deno {
     rootName: string,
     sources?: Record<string, string>,
     options?: CompilerOptions
-  ): Promise<[Diagnostic | undefined, Record<string, string>]>;
+  ): Promise<[DiagnosticItem[] | undefined, Record<string, string>]>;
 
   /** UNSTABLE: new API, yet to be vetted.
    *
@@ -2129,7 +2129,7 @@ declare namespace Deno {
     rootName: string,
     sources?: Record<string, string>,
     options?: CompilerOptions
-  ): Promise<[Diagnostic | undefined, string]>;
+  ): Promise<[DiagnosticItem[] | undefined, string]>;
 
   /** Returns the script arguments to the program. If for example we run a program
    *