diff --git a/clang/lib/Format/FormatToken.h b/clang/lib/Format/FormatToken.h
--- a/clang/lib/Format/FormatToken.h
+++ b/clang/lib/Format/FormatToken.h
@@ -46,6 +46,7 @@
   TYPE(DesignatedInitializerLSquare)                                           \
   TYPE(DesignatedInitializerPeriod)                                            \
   TYPE(DictLiteral)                                                            \
+  TYPE(FatArrow)                                                               \
   TYPE(ForEachMacro)                                                           \
   TYPE(FunctionAnnotationRParen)                                               \
   TYPE(FunctionDeclarationName)                                                \
@@ -61,17 +62,12 @@
   TYPE(JsComputedPropertyName)                                                 \
   TYPE(JsExponentiation)                                                       \
   TYPE(JsExponentiationEqual)                                                  \
-  TYPE(JsFatArrow)                                                             \
-  TYPE(JsNonNullAssertion)                                                     \
-  TYPE(JsNullishCoalescingOperator)                                            \
-  TYPE(JsNullPropagatingOperator)                                              \
+  TYPE(JsPipePipeEqual)                                                        \
   TYPE(JsPrivateIdentifier)                                                    \
   TYPE(JsTypeColon)                                                            \
   TYPE(JsTypeOperator)                                                         \
   TYPE(JsTypeOptionalQuestion)                                                 \
   TYPE(JsAndAndEqual)                                                          \
-  TYPE(JsPipePipeEqual)                                                        \
-  TYPE(JsNullishCoalescingEqual)                                               \
   TYPE(LambdaArrow)                                                            \
   TYPE(LambdaLBrace)                                                           \
   TYPE(LambdaLSquare)                                                          \
@@ -80,6 +76,10 @@
   TYPE(MacroBlockBegin)                                                        \
   TYPE(MacroBlockEnd)                                                          \
   TYPE(NamespaceMacro)                                                         \
+  TYPE(NonNullAssertion)                                                       \
+  TYPE(NullCoalescingEqual)                                                    \
+  TYPE(NullCoalescingOperator)                                                 \
+  TYPE(NullPropagatingOperator)                                                \
   TYPE(ObjCBlockLBrace)                                                        \
   TYPE(ObjCBlockLParen)                                                        \
   TYPE(ObjCDecl)                                                               \
diff --git a/clang/lib/Format/FormatTokenLexer.cpp b/clang/lib/Format/FormatTokenLexer.cpp
--- a/clang/lib/Format/FormatTokenLexer.cpp
+++ b/clang/lib/Format/FormatTokenLexer.cpp
@@ -99,15 +99,14 @@
                                                              tok::period};
     static const tok::TokenKind FatArrow[] = {tok::equal, tok::greater};
 
-    if (tryMergeTokens(FatArrow, TT_JsFatArrow))
+    if (tryMergeTokens(FatArrow, TT_FatArrow))
       return;
-    if (tryMergeTokens(NullishCoalescingOperator,
-                       TT_JsNullishCoalescingOperator)) {
+    if (tryMergeTokens(NullishCoalescingOperator, TT_NullCoalescingOperator)) {
       // Treat like the "||" operator (as opposed to the ternary ?).
       Tokens.back()->Tok.setKind(tok::pipepipe);
       return;
     }
-    if (tryMergeTokens(NullPropagatingOperator, TT_JsNullPropagatingOperator)) {
+    if (tryMergeTokens(NullPropagatingOperator, TT_NullPropagatingOperator)) {
       // Treat like a regular "." access.
       Tokens.back()->Tok.setKind(tok::period);
       return;
@@ -321,7 +320,7 @@
     return false;
   auto &NullishCoalescing = *(Tokens.end() - 2);
   auto &Equal = *(Tokens.end() - 1);
-  if (NullishCoalescing->getType() != TT_JsNullishCoalescingOperator ||
+  if (NullishCoalescing->getType() != TT_NullCoalescingOperator ||
       !Equal->is(tok::equal))
     return false;
   NullishCoalescing->Tok.setKind(tok::equal); // no '??=' in clang tokens.
@@ -329,7 +328,7 @@
       StringRef(NullishCoalescing->TokenText.begin(),
                 Equal->TokenText.end() - NullishCoalescing->TokenText.begin());
   NullishCoalescing->ColumnWidth += Equal->ColumnWidth;
-  NullishCoalescing->setType(TT_JsNullishCoalescingEqual);
+  NullishCoalescing->setType(TT_NullCoalescingEqual);
   Tokens.erase(Tokens.end() - 1);
   return true;
 }
diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -1365,7 +1365,7 @@
     if (!CurrentToken->isOneOf(
             TT_LambdaLSquare, TT_LambdaLBrace, TT_AttributeMacro,
             TT_ForEachMacro, TT_TypenameMacro, TT_FunctionLBrace,
-            TT_ImplicitStringLiteral, TT_InlineASMBrace, TT_JsFatArrow,
+            TT_ImplicitStringLiteral, TT_InlineASMBrace, TT_FatArrow,
             TT_LambdaArrow, TT_NamespaceMacro, TT_OverloadedOperator,
             TT_RegexLiteral, TT_TemplateString, TT_ObjCStringLiteral,
             TT_UntouchableMacroFunc, TT_ConstraintJunctions,
@@ -1578,13 +1578,13 @@
                 tok::kw_false, tok::kw_true, Keywords.kw_type, Keywords.kw_get,
                 Keywords.kw_set) ||
             Current.Previous->Tok.isLiteral()) {
-          Current.setType(TT_JsNonNullAssertion);
+          Current.setType(TT_NonNullAssertion);
           return;
         }
       }
       if (Current.Next &&
           Current.Next->isOneOf(TT_BinaryOperator, Keywords.kw_as)) {
-        Current.setType(TT_JsNonNullAssertion);
+        Current.setType(TT_NonNullAssertion);
         return;
       }
     }
@@ -2174,7 +2174,7 @@
         return prec::Assignment;
       if (Current->is(TT_LambdaArrow))
         return prec::Comma;
-      if (Current->is(TT_JsFatArrow))
+      if (Current->is(TT_FatArrow))
         return prec::Assignment;
       if (Current->isOneOf(tok::semi, TT_InlineASMColon, TT_SelectorName) ||
           (Current->is(tok::comment) && NextNonComment &&
@@ -3145,7 +3145,7 @@
       return true;
 
     // Spaces around '=>'.
-    if (Left.is(TT_JsFatArrow) || Right.is(TT_JsFatArrow))
+    if (Left.is(TT_FatArrow) || Right.is(TT_FatArrow))
       return true;
 
     // No spaces around attribute target colons
@@ -3165,7 +3165,7 @@
       return false;
 
     // No space before null forgiving '!'.
-    if (Right.is(TT_JsNonNullAssertion))
+    if (Right.is(TT_NonNullAssertion))
       return false;
 
     // No space between consecutive commas '[,,]'.
@@ -3193,7 +3193,7 @@
         Right.is(tok::l_paren))
       return true;
   } else if (Style.Language == FormatStyle::LK_JavaScript) {
-    if (Left.is(TT_JsFatArrow))
+    if (Left.is(TT_FatArrow))
       return true;
     // for await ( ...
     if (Right.is(tok::l_paren) && Left.is(Keywords.kw_await) && Left.Previous &&
@@ -3204,7 +3204,7 @@
       const FormatToken *Next = Right.MatchingParen->getNextNonComment();
       // An async arrow function, for example: `x = async () => foo();`,
       // as opposed to calling a function called async: `x = async();`
-      if (Next && Next->is(TT_JsFatArrow))
+      if (Next && Next->is(TT_FatArrow))
         return true;
     }
     if ((Left.is(TT_TemplateString) && Left.TokenText.endswith("${")) ||
@@ -3278,9 +3278,9 @@
       // locations that should have whitespace following are identified by the
       // above set of follower tokens.
       return false;
-    if (Right.is(TT_JsNonNullAssertion))
+    if (Right.is(TT_NonNullAssertion))
       return false;
-    if (Left.is(TT_JsNonNullAssertion) &&
+    if (Left.is(TT_NonNullAssertion) &&
         Right.isOneOf(Keywords.kw_as, Keywords.kw_in))
       return true; // "x! as string", "x! in y"
   } else if (Style.Language == FormatStyle::LK_Java) {
@@ -3544,7 +3544,7 @@
       // instead of bin-packing.
       return true;
     if (Right.is(tok::r_brace) && Left.is(tok::l_brace) && Left.Previous &&
-        Left.Previous->is(TT_JsFatArrow)) {
+        Left.Previous->is(TT_FatArrow)) {
       // JS arrow function (=> {...}).
       switch (Style.AllowShortLambdasOnASingleLine) {
       case FormatStyle::SLS_All:
@@ -3847,7 +3847,7 @@
     if (NonComment && NonComment->is(tok::identifier) &&
         NonComment->TokenText == "asserts")
       return false;
-    if (Left.is(TT_JsFatArrow) && Right.is(tok::l_brace))
+    if (Left.is(TT_FatArrow) && Right.is(tok::l_brace))
       return false;
     if (Left.is(TT_JsTypeColon))
       return true;
@@ -3883,7 +3883,7 @@
     }
     if (Left.is(Keywords.kw_as))
       return true;
-    if (Left.is(TT_JsNonNullAssertion))
+    if (Left.is(TT_NonNullAssertion))
       return true;
     if (Left.is(Keywords.kw_declare) &&
         Right.isOneOf(Keywords.kw_module, tok::kw_namespace,
diff --git a/clang/lib/Format/UnwrappedLineParser.cpp b/clang/lib/Format/UnwrappedLineParser.cpp
--- a/clang/lib/Format/UnwrappedLineParser.cpp
+++ b/clang/lib/Format/UnwrappedLineParser.cpp
@@ -1480,9 +1480,9 @@
     }
     case tok::equal:
       // Fat arrows (=>) have tok::TokenKind tok::equal but TokenType
-      // TT_JsFatArrow. The always start an expression or a child block if
+      // TT_FatArrow. The always start an expression or a child block if
       // followed by a curly.
-      if (FormatTok->is(TT_JsFatArrow)) {
+      if (FormatTok->is(TT_FatArrow)) {
         nextToken();
         if (FormatTok->is(tok::l_brace)) {
           // C# may break after => if the next character is a newline.
@@ -1588,7 +1588,7 @@
       --Line->Level;
       break;
     case tok::equal:
-      if (FormatTok->is(TT_JsFatArrow)) {
+      if (FormatTok->is(TT_FatArrow)) {
         ++Line->Level;
         do {
           nextToken();
@@ -1791,7 +1791,7 @@
   // replace this by using parseAssigmentExpression() inside.
   do {
     if (Style.isCSharp()) {
-      if (FormatTok->is(TT_JsFatArrow)) {
+      if (FormatTok->is(TT_FatArrow)) {
         nextToken();
         // Fat arrows can be followed by simple expressions or by child blocks
         // in curly braces.
@@ -1807,7 +1807,7 @@
         tryToParseJSFunction();
         continue;
       }
-      if (FormatTok->is(TT_JsFatArrow)) {
+      if (FormatTok->is(TT_FatArrow)) {
         nextToken();
         // Fat arrows can be followed by simple expressions or by child blocks
         // in curly braces.