Remove FlowNodes and FlowFlags from public API (microsoft#58036)

Author: jakebailey

src/compiler/types.ts

@@ -4070,6 +4070,7 @@ export interface JSDocImportTag extends JSDocTag {
 
 // NOTE: Ensure this is up-to-date with src/debug/debug.ts
 // dprint-ignore
+/** @internal */
 export const enum FlowFlags {
  Unreachable = 1 << 0, // Unreachable code
  Start = 1 << 1, // Start of flow graph
@@ -4089,6 +4090,7 @@ export const enum FlowFlags {
  Condition = TrueCondition | FalseCondition,
 }
 
+/** @internal */
 export type FlowNode =
  | FlowStart
  | FlowLabel
@@ -4099,6 +4101,7 @@ export type FlowNode =
  | FlowCall
  | FlowReduceLabel;
 
+/** @internal */
 export interface FlowNodeBase {
  flags: FlowFlags;
  id?: number; // Node id used by flow type cache in checker
@@ -4107,35 +4110,41 @@ export interface FlowNodeBase {
 // FlowStart represents the start of a control flow. For a function expression or arrow
 // function, the node property references the function (which in turn has a flowNode
 // property for the containing control flow).
+/** @internal */
 export interface FlowStart extends FlowNodeBase {
  node?: FunctionExpression | ArrowFunction | MethodDeclaration | GetAccessorDeclaration | SetAccessorDeclaration;
 }
 
 // FlowLabel represents a junction with multiple possible preceding control flows.
+/** @internal */
 export interface FlowLabel extends FlowNodeBase {
  antecedents: FlowNode[] | undefined;
 }
 
 // FlowAssignment represents a node that assigns a value to a narrowable reference,
 // i.e. an identifier or a dotted name that starts with an identifier or 'this'.
+/** @internal */
 export interface FlowAssignment extends FlowNodeBase {
  node: Expression | VariableDeclaration | BindingElement;
  antecedent: FlowNode;
 }
 
+/** @internal */
 export interface FlowCall extends FlowNodeBase {
  node: CallExpression;
  antecedent: FlowNode;
 }
 
 // FlowCondition represents a condition that is known to be true or false at the
 // node's location in the control flow.
+/** @internal */
 export interface FlowCondition extends FlowNodeBase {
  node: Expression;
  antecedent: FlowNode;
 }
 
 // dprint-ignore
+/** @internal */
 export interface FlowSwitchClause extends FlowNodeBase {
  switchStatement: SwitchStatement;
  clauseStart: number; // Start index of case/default clause range
@@ -4145,11 +4154,13 @@ export interface FlowSwitchClause extends FlowNodeBase {
 
 // FlowArrayMutation represents a node potentially mutates an array, i.e. an
 // operation of the form 'x.push(value)', 'x.unshift(value)' or 'x[n] = value'.
+/** @internal */
 export interface FlowArrayMutation extends FlowNodeBase {
  node: CallExpression | BinaryExpression;
  antecedent: FlowNode;
 }
 
+/** @internal */
 export interface FlowReduceLabel extends FlowNodeBase {
  target: FlowLabel;
  antecedents: FlowNode[];

tests/baselines/reference/api/typescript.d.ts

@@ -5793,61 +5793,6 @@ declare namespace ts {
  readonly moduleSpecifier: Expression;
  readonly attributes?: ImportAttributes;
  }
- enum FlowFlags {
- Unreachable = 1,
- Start = 2,
- BranchLabel = 4,
- LoopLabel = 8,
- Assignment = 16,
- TrueCondition = 32,
- FalseCondition = 64,
- SwitchClause = 128,
- ArrayMutation = 256,
- Call = 512,
- ReduceLabel = 1024,
- Referenced = 2048,
- Shared = 4096,
- Label = 12,
- Condition = 96,
- }
- type FlowNode = FlowStart | FlowLabel | FlowAssignment | FlowCondition | FlowSwitchClause | FlowArrayMutation | FlowCall | FlowReduceLabel;
- interface FlowNodeBase {
- flags: FlowFlags;
- id?: number;
- }
- interface FlowStart extends FlowNodeBase {
- node?: FunctionExpression | ArrowFunction | MethodDeclaration | GetAccessorDeclaration | SetAccessorDeclaration;
- }
- interface FlowLabel extends FlowNodeBase {
- antecedents: FlowNode[] | undefined;
- }
- interface FlowAssignment extends FlowNodeBase {
- node: Expression | VariableDeclaration | BindingElement;
- antecedent: FlowNode;
- }
- interface FlowCall extends FlowNodeBase {
- node: CallExpression;
- antecedent: FlowNode;
- }
- interface FlowCondition extends FlowNodeBase {
- node: Expression;
- antecedent: FlowNode;
- }
- interface FlowSwitchClause extends FlowNodeBase {
- switchStatement: SwitchStatement;
- clauseStart: number;
- clauseEnd: number;
- antecedent: FlowNode;
- }
- interface FlowArrayMutation extends FlowNodeBase {
- node: CallExpression | BinaryExpression;
- antecedent: FlowNode;
- }
- interface FlowReduceLabel extends FlowNodeBase {
- target: FlowLabel;
- antecedents: FlowNode[];
- antecedent: FlowNode;
- }
  type FlowType = Type | IncompleteType;
  interface IncompleteType {
  flags: TypeFlags | 0;