avoid space before dot question (#33840)

Author: Kingwl

src/services/formatting/rules.ts

@@ -59,8 +59,8 @@ namespace ts.formatting {
             // in other cases there should be no space between '?' and next token
             rule("NoSpaceAfterQuestionMark", SyntaxKind.QuestionToken, anyToken, [isNonJsxSameLineTokenContext], RuleAction.DeleteSpace),
 
-            rule("NoSpaceBeforeDot", anyToken, SyntaxKind.DotToken, [isNonJsxSameLineTokenContext], RuleAction.DeleteSpace),
-            rule("NoSpaceAfterDot", SyntaxKind.DotToken, anyToken, [isNonJsxSameLineTokenContext], RuleAction.DeleteSpace),
+            rule("NoSpaceBeforeDot", anyToken, [SyntaxKind.DotToken, SyntaxKind.QuestionDotToken], [isNonJsxSameLineTokenContext], RuleAction.DeleteSpace),
+            rule("NoSpaceAfterDot", [SyntaxKind.DotToken, SyntaxKind.QuestionDotToken], anyToken, [isNonJsxSameLineTokenContext], RuleAction.DeleteSpace),
 
             rule("NoSpaceBetweenImportParenInImportType", SyntaxKind.ImportKeyword, SyntaxKind.OpenParenToken, [isNonJsxSameLineTokenContext, isImportTypeContext], RuleAction.DeleteSpace),
 

tests/cases/fourslash/formattingSpaceBetweenOptionalChaining.ts

@@ -0,0 +1,10 @@
+/// <reference path='fourslash.ts' />
+
+/////*1*/a    ?.    b   ?.   c   .   d;
+/////*2*/o    .  m()   ?.   length;
+
+format.document();
+goTo.marker("1");
+verify.currentLineContentIs("a?.b?.c.d;");
+goTo.marker("2");
+verify.currentLineContentIs("o.m()?.length;");