Revert "Bind typedef/enum on all assignment decl kinds (#33240)"

This reverts commit b542bdf.

Author: sandersn

src/compiler/binder.ts

@@ -1827,23 +1827,7 @@ namespace ts {
                         bindPotentiallyMissingNamespaces(file.symbol, declName.parent, isTopLevel,
                             !!findAncestor(declName, d => isPropertyAccessExpression(d) && d.name.escapedText === "prototype"), /*containerIsClass*/ false);
                         const oldContainer = container;
-                        switch (getAssignmentDeclarationPropertyAccessKind(declName.parent)) {
-                            case AssignmentDeclarationKind.ExportsProperty:
-                            case AssignmentDeclarationKind.ModuleExports:
-                                container = file;
-                                break;
-                            case AssignmentDeclarationKind.ThisProperty:
-                                container = declName.parent.expression;
-                                break;
-                            case AssignmentDeclarationKind.PrototypeProperty:
-                                container = (declName.parent.expression as PropertyAccessExpression).name;
-                                break;
-                            case AssignmentDeclarationKind.Property:
-                                container = isPropertyAccessExpression(declName.parent.expression) ? declName.parent.expression.name : declName.parent.expression;
-                                break;
-                            case AssignmentDeclarationKind.None:
-                                return Debug.fail("Shouldn't have detected typedef or enum on non-assignment declaration");
-                        }
+                        container = isPropertyAccessExpression(declName.parent.expression) ? declName.parent.expression.name : declName.parent.expression;
                         declareModuleMember(typeAlias, SymbolFlags.TypeAlias, SymbolFlags.TypeAliasExcludes);
                         container = oldContainer;
                     }