Add utility property for adding backticks

Author: fwcd

Sources/SwiftSyntaxBuilderGeneration/String+Extensions.swift

@@ -14,4 +14,5 @@ import Foundation
 
 extension StringProtocol {
     var withFirstCharacterLowercased: String { prefix(1).lowercased() + dropFirst() }
+    var backticked: String { "`\(string.replacingOccurrences(of: "`", with: ""))`" }
 }

Sources/SwiftSyntaxBuilderGeneration/Templates/TokensFile.swift

@@ -38,7 +38,7 @@ let tokensFile = SourceFile {
             FunctionCallExpr(MemberAccessExpr(base: "SyntaxFactory", name: "make\(token.name)Keyword"))
           }
 
-          createTokenSyntaxPatternBinding("`\(token.name.withFirstCharacterLowercased)`", accessor: accessor)
+          createTokenSyntaxPatternBinding(token.name.withFirstCharacterLowercased.backticked, accessor: accessor)
         }
       } else if let text = token.text {
         VariableDecl(
@@ -69,7 +69,7 @@ let tokensFile = SourceFile {
 
         FunctionDecl(
           modifiers: [TokenSyntax.static],
-          identifier: .identifier("`\(token.name.withFirstCharacterLowercased)`"),
+          identifier: .identifier(token.name.withFirstCharacterLowercased.backticked),
           signature: signature
         ) {
           FunctionCallExpr(MemberAccessExpr(base: "SyntaxFactory", name: "make\(token.name)")) {