refactor(ivy): generate pipe names instead of defs

[kara]

This PR updates the Ivy compiler to generate pipe names instead of defs.

Original template:

{{ name | myPipe }}

Before:

class MyPipe {
   static ngPipeDef = definePipe({
      type: MyPipe,
      ...
   });
}

...
template: (ctx: SomeComp, cm: boolean) {
   if (cm) {
      T(0);
      Pp(1, MyPipe.ngPipeDef);
   }
   t(0, i1('', pb1(1, ctx.name), ''));
}

After:

class MyPipe {
   static ngPipeDef = definePipe({
      name: 'myPipe',
      type: MyPipe,
      ...
   });
}

...
template: (ctx: SomeComp, cm: boolean) {
   if (cm) {
      T(0);
      Pp(1, 'myPipe');
   }
   t(0, i1('', pb1(1, ctx.name), ''));
}

Notes:

• We used to have an optimization where we passed the first instance of a pure pipe to any subsequent invocations of that pipe, to avoid having to instantiate it multiple times. Now that the compiler is generating code as if it doesn't know which pipes are present in the template (and thus which ones are pure and should get an instance), it no longer makes sense to generate this extra argument.

• Once test(ivy): create todo app in ivy #22921 goes in, we'll want to refactor to share the addDependencyToComponent logic.

[kara]

presubmit

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