fix(ivy): remove metadata from *Def and introduce *DefWithMeta types (#26203)

Previously in Ivy, metadata for directives/components/modules/etc was
carried in .d.ts files inside type information encoded on the
DirectiveDef, ComponentDef, NgModuleDef, etc types of Ivy definition
fields. This works well, but has the side effect of complicating Ivy's
runtime code as these extra generic type parameters had to be specified
as <any> throughout the codebase. *DefInternal types were introduced
previously to mitigate this issue, but that's the wrong way to solve
the problem.

This commit returns *Def types to their original form, with no metadata
attached. Instead, new *DefWithMeta types are introduced that alias the
plain definition types and add extra generic parameters. This way the
only code that needs to deal with the extra metadata parameters is the
compiler code that reads and writes them - the existence of this metadata
is transparent to the runtime, as it should be.

PR Close #26203

packages/core/src/metadata/ng_module.ts

@@ -26,11 +26,7 @@ export interface NgModuleTransitiveScopes {
   exported: {directives: Set<any>; pipes: Set<any>;};
 }
 
-/**
- * A version of {@link NgModuleDef} that represents the runtime type shape only, and excludes
- * metadata parameters.
- */
-export type NgModuleDefInternal<T> = NgModuleDef<T, any, any, any>;
+export type NgModuleDefWithMeta<T, Declarations, Imports, Exports> = NgModuleDef<T>;
 
 /**
  * Runtime link information for NgModules.
@@ -42,7 +38,7 @@ export type NgModuleDefInternal<T> = NgModuleDef<T, any, any, any>;
  * never create the object directly since the shape of this object
  * can change between versions.
  */
-export interface NgModuleDef<T, Declarations, Imports, Exports> {
+export interface NgModuleDef<T> {
   /** Token representing the module. Used by DI. */
   type: T;