Ignore backticks in documentation abstracts

The linguistic tagger doesn't do a great job recognizing backticks as opening vs. closing
quotes, so some valid abstracts that contain backticks were being rejected by the
`BeginDocumentationCommentWithOneLineSummary` rule. This change removes any backtick-
quoted sections from abstracts before processing, since they aren't important to that
judgment.

Author: natecook1000

Sources/SwiftFormat/Rules/BeginDocumentationCommentWithOneLineSummary.swift

@@ -97,8 +97,13 @@ public final class BeginDocumentationCommentWithOneLineSummary: SyntaxLintRule {
     else { return }
 
     // For the purposes of checking the sentence structure of the comment, we can operate on the
-    // plain text; we don't need any of the styling.
-    let trimmedText = briefSummary.plainText.trimmingCharacters(in: .whitespacesAndNewlines)
+    // plain text; we don't need any of the styling. Additionally, the backticks that are
+    // frequently used to denote symbol names cause issues with quote identification, and
+    // aren't necessary for this purpose.
+    let trimmedText = briefSummary.plainText
+      .trimmingCharacters(in: .whitespacesAndNewlines)
+      .replacingOccurrences(of: "``.+?``", with: "ZZZ", options: .regularExpression)
+      .replacingOccurrences(of: "`.+?`", with: "zzz", options: .regularExpression)
     let (commentSentences, trailingText) = sentences(in: trimmedText)
     if commentSentences.count == 0 {
       diagnose(.terminateSentenceWithPeriod(trimmedText), on: decl)

Tests/SwiftFormatTests/Rules/BeginDocumentationCommentWithOneLineSummaryTests.swift

@@ -31,6 +31,13 @@ final class BeginDocumentationCommentWithOneLineSummaryTests: LintOrFormatRuleTe
         // ...
         }
 
+        /// Open a scope enclosed by `"typewriter"` double-quotes.
+        struct BeginTypewriterDoubleQuotes: MDocMacroProtocol {}
+
+        /// Before parsing arguments, capture all inputs that follow the `--`
+        /// terminator in this argument array.
+        public static var postTerminator: ArgumentArrayParsingStrategy
+
         /// This docline should not succeed.
         /// There are two sentences without a blank line between them.
         1️⃣struct Test {}