refactor(compiler): Add a kind field to the parsed AST

The Aspirin team wants to use the output of `parseTemplate` in order to build some g3-internal tooling. However, our AST is very serialization-unfriendly.

With this change, all AST nodes now have a `kind`, and can be reasonably navigated after serialization (although the inner fields are still pretty messy).

Additionally, create a separate entrypoint that only reexports the AST nodes, so that we can control visibility on a more granular level to the AST alone.t push -f

packages/compiler/src/compiler.ts

@@ -121,46 +121,7 @@ export {SourceMap} from './output/source_map';
 export * from './injectable_compiler_2';
 export * from './render3/partial/api';
 export * from './render3/view/api';
-export {
-  visitAll as tmplAstVisitAll,
-  BlockNode as TmplAstBlockNode,
-  BoundAttribute as TmplAstBoundAttribute,
-  BoundEvent as TmplAstBoundEvent,
-  BoundText as TmplAstBoundText,
-  Content as TmplAstContent,
-  Element as TmplAstElement,
-  Icu as TmplAstIcu,
-  Node as TmplAstNode,
-  Visitor as TmplAstVisitor,
-  RecursiveVisitor as TmplAstRecursiveVisitor,
-  Reference as TmplAstReference,
-  Template as TmplAstTemplate,
-  Text as TmplAstText,
-  TextAttribute as TmplAstTextAttribute,
-  Variable as TmplAstVariable,
-  DeferredBlock as TmplAstDeferredBlock,
-  DeferredBlockPlaceholder as TmplAstDeferredBlockPlaceholder,
-  DeferredBlockLoading as TmplAstDeferredBlockLoading,
-  DeferredBlockError as TmplAstDeferredBlockError,
-  DeferredTrigger as TmplAstDeferredTrigger,
-  BoundDeferredTrigger as TmplAstBoundDeferredTrigger,
-  IdleDeferredTrigger as TmplAstIdleDeferredTrigger,
-  ImmediateDeferredTrigger as TmplAstImmediateDeferredTrigger,
-  HoverDeferredTrigger as TmplAstHoverDeferredTrigger,
-  TimerDeferredTrigger as TmplAstTimerDeferredTrigger,
-  InteractionDeferredTrigger as TmplAstInteractionDeferredTrigger,
-  ViewportDeferredTrigger as TmplAstViewportDeferredTrigger,
-  NeverDeferredTrigger as TmplAstNeverDeferredTrigger,
-  SwitchBlock as TmplAstSwitchBlock,
-  SwitchBlockCase as TmplAstSwitchBlockCase,
-  ForLoopBlock as TmplAstForLoopBlock,
-  ForLoopBlockEmpty as TmplAstForLoopBlockEmpty,
-  IfBlock as TmplAstIfBlock,
-  IfBlockBranch as TmplAstIfBlockBranch,
-  DeferredBlockTriggers as TmplAstDeferredBlockTriggers,
-  UnknownBlock as TmplAstUnknownBlock,
-  LetDeclaration as TmplAstLetDeclaration,
-} from './render3/r3_ast';
+export * from './compiler_ast';
 export * from './render3/view/t2_api';
 export * from './render3/view/t2_binder';
 export {createCssSelectorFromNode} from './render3/view/util';

packages/compiler/src/compiler_ast.ts

@@ -0,0 +1,50 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+export {
+  BlockNode as TmplAstBlockNode,
+  BoundAttribute as TmplAstBoundAttribute,
+  BoundDeferredTrigger as TmplAstBoundDeferredTrigger,
+  BoundEvent as TmplAstBoundEvent,
+  BoundText as TmplAstBoundText,
+  Content as TmplAstContent,
+  Comment as TmplAstComment,
+  DeferredBlock as TmplAstDeferredBlock,
+  DeferredBlockError as TmplAstDeferredBlockError,
+  DeferredBlockLoading as TmplAstDeferredBlockLoading,
+  DeferredBlockPlaceholder as TmplAstDeferredBlockPlaceholder,
+  DeferredBlockTriggers as TmplAstDeferredBlockTriggers,
+  DeferredTrigger as TmplAstDeferredTrigger,
+  Element as TmplAstElement,
+  ForLoopBlock as TmplAstForLoopBlock,
+  ForLoopBlockEmpty as TmplAstForLoopBlockEmpty,
+  HoverDeferredTrigger as TmplAstHoverDeferredTrigger,
+  Icu as TmplAstIcu,
+  IdleDeferredTrigger as TmplAstIdleDeferredTrigger,
+  IfBlock as TmplAstIfBlock,
+  IfBlockBranch as TmplAstIfBlockBranch,
+  ImmediateDeferredTrigger as TmplAstImmediateDeferredTrigger,
+  InteractionDeferredTrigger as TmplAstInteractionDeferredTrigger,
+  LetDeclaration as TmplAstLetDeclaration,
+  NeverDeferredTrigger as TmplAstNeverDeferredTrigger,
+  Node as TmplAstNode,
+  RecursiveVisitor as TmplAstRecursiveVisitor,
+  Reference as TmplAstReference,
+  SwitchBlock as TmplAstSwitchBlock,
+  SwitchBlockCase as TmplAstSwitchBlockCase,
+  Template as TmplAstTemplate,
+  Text as TmplAstText,
+  TextAttribute as TmplAstTextAttribute,
+  TimerDeferredTrigger as TmplAstTimerDeferredTrigger,
+  UnknownBlock as TmplAstUnknownBlock,
+  Variable as TmplAstVariable,
+  ViewportDeferredTrigger as TmplAstViewportDeferredTrigger,
+  Visitor as TmplAstVisitor,
+  NodeKind as TmplAstNodeKind,
+  visitAll as tmplAstVisitAll,
+} from './render3/r3_ast';