Fix the problematic builders

Author: RoBo-Inc

Sources/SwiftSyntaxBuilder/ConvenienceInitializers.swift

@@ -380,6 +380,22 @@ extension VariableDeclSyntax {
   }
 }
 
+// MARK: Initializing collections from protocols
+// These initializers allow the creation of syntax collections that have a base
+// node as their element from the corresponding protocol type.
+
+extension ExprListSyntax {
+  public init(_ elements: [ExprSyntaxProtocol]) {
+    self.init(elements.map { ExprSyntax(fromProtocol: $0) } as [ExprSyntax])
+  }
+}
+
+extension UnexpectedNodesSyntax {
+  public init(_ elements: [SyntaxProtocol]) {
+    self.init(elements.map { Syntax(fromProtocol: $0) } as [Syntax])
+  }
+}
+
 //==========================================================================//
 // IMPORTANT: If you are tempted to add an extension here, please insert    //
 // it in alphabetical order above                                           //

Sources/SwiftSyntaxBuilder/ResultBuilderExtensions.swift

@@ -50,20 +50,14 @@ extension MemberBlockItemListBuilder {
   }
 }
 
-// MARK: Initializing collections from protocols
-// These initializers allow the creation of syntax collections that have a base
-// node as their element from the corresponding protocol type.
-// These are used by the result builders.
-// Since we only have two of these, it doesn’t make sense to generate them.
-
-extension ExprListSyntax {
-  init(_ elements: [ExprSyntaxProtocol]) {
-    self = ExprListSyntax(elements.map { ExprSyntax(fromProtocol: $0) } as [ExprSyntax])
+extension ExprListBuilder {
+  public static func buildExpression(_ expression: some ExprSyntaxProtocol) -> Component {
+    return buildExpression(ExprSyntax(fromProtocol: expression))
   }
 }
 
-extension UnexpectedNodesSyntax {
-  public init(_ elements: [SyntaxProtocol]) {
-    self = UnexpectedNodesSyntax(elements.map { Syntax(fromProtocol: $0) } as [Syntax])
+extension UnexpectedNodesBuilder {
+  public static func buildExpression(_ expression: some SyntaxProtocol) -> Component {
+    return buildExpression(Syntax(fromProtocol: expression))
   }
 }

Tests/SwiftParserTest/DeclarationTests.swift

@@ -1246,7 +1246,8 @@ final class DeclarationTests: ParserTestCase {
           ])
         ),
         UnexpectedNodesSyntax([
-          TokenSyntax.identifier("bogus"), TokenSyntax.keyword(.rethrows),
+          TokenSyntax.identifier("bogus"),
+          TokenSyntax.keyword(.rethrows),
           TokenSyntax.identifier("set"),
         ])
       ),
@@ -1352,7 +1353,10 @@ final class DeclarationTests: ParserTestCase {
       substructure: FunctionParameterSyntax(
         firstName: .identifier("first"),
         secondName: .identifier("second"),
-        UnexpectedNodesSyntax([TokenSyntax.identifier("third"), TokenSyntax.identifier("fourth")]),
+        UnexpectedNodesSyntax([
+          TokenSyntax.identifier("third"),
+          TokenSyntax.identifier("fourth"),
+        ]),
         colon: .colonToken(),
         type: IdentifierTypeSyntax(name: .identifier("Int"))
       ),
@@ -2879,9 +2883,7 @@ final class DeclarationTests: ParserTestCase {
       substructure: FunctionDeclSyntax(
         funcKeyword: .keyword(.func),
         name: .identifier("test"),
-        UnexpectedNodesSyntax([
-          TokenSyntax.identifier("<#name#>")
-        ]),
+        UnexpectedNodesSyntax([TokenSyntax.identifier("<#name#>")]),
         signature: FunctionSignatureSyntax(
           parameterClause: FunctionParameterClauseSyntax(
             parameters: FunctionParameterListSyntax([])