Merge pull request #402 from amadeus/fix-401

Fix class definitions with no name

Author: amadeus

syntax/javascript.vim

@@ -215,7 +215,7 @@ syntax match   jsArrowFuncArgs  /([^()]*)\s*\(=>\)\@=/ skipempty skipwhite conta
 syntax keyword jsClassKeywords extends class contained
 syntax match   jsClassNoise /\./ contained
 syntax keyword jsClassMethodDefinitions get set static contained nextgroup=jsFuncName skipwhite skipempty
-syntax match   jsClassDefinition /class [a-zA-Z_$][0-9a-zA-Z_$ \n.]*/  contains=jsClassKeywords,jsClassNoise nextgroup=jsClassBlock skipwhite skipempty
+syntax match   jsClassDefinition /class\%( [a-zA-Z_$][0-9a-zA-Z_$ \n.]*\)*/  contains=jsClassKeywords,jsClassNoise nextgroup=jsClassBlock skipwhite skipempty
 
 " Define the default highlighting.
 " For version 5.7 and earlier: only when not done already