* lisp/progmodes/typescript-ts-mode.el (typescript-ts-mode--keywords):
New keyword 'is'.
"case" "catch" "class" "const" "continue" "debugger"
"declare" "default" "delete" "do" "else" "enum"
"export" "extends" "finally" "for" "from" "function"
- "get" "if" "implements" "import" "in" "instanceof" "interface"
+ "get" "if" "implements" "import" "in" "instanceof" "interface" "is"
"keyof" "let" "namespace" "new" "of" "private" "protected"
"public" "readonly" "return" "set" "static" "switch"
"target" "throw" "try" "type" "typeof" "var" "void"