Custom jsFuncName for object definitions

This ES6 version of jsFuncName requires some special handling to not, by
default, overwrite jsObjectKey and also not overwrite jsFuncCall.

Author: amadeus

syntax/javascript.vim

@@ -185,9 +185,9 @@ syntax cluster jsExpression contains=jsComment,jsLineComment,jsBlockComment,jsTa
 syntax cluster jsAll        contains=@jsExpression,jsLabel,jsConditional,jsRepeat,jsReturn,jsStatement,jsTernaryIf,jsException
 syntax region  jsBracket    matchgroup=jsBrackets     start="\[" end="\]" contains=@jsAll,jsParensErrB,jsParensErrC,jsBracket,jsParen,jsBlock,@htmlPreproc fold
 syntax region  jsParen      matchgroup=jsParens       start="("  end=")"  contains=@jsAll,jsOf,jsParensErrA,jsParensErrC,jsParen,jsBracket,jsBlock,@htmlPreproc fold extend
-syntax region  jsClassBlock matchgroup=jsClassBraces  start="{"  end="}"  contains=jsFuncName,jsClassMethodDefinitions,jsOperator,jsArrowFunction,jsArrowFuncArgs,jsComment,jsBlockComment,jsLineComment contained fold
+syntax region  jsClassBlock matchgroup=jsClassBraces  start="{"  end="}"  contains=jsFuncName,jsClassMethodDefinitions,jsOperator,jsArrowFunction,jsArrowFuncArgs,jsComment,jsBlockComment,jsLineComment,jsGenerator contained fold
 syntax region  jsFuncBlock  matchgroup=jsFuncBraces   start="{"  end="}"  contains=@jsAll,jsParensErrA,jsParensErrB,jsParen,jsBracket,jsBlock,@htmlPreproc,jsClassDefinition fold extend
-syntax region  jsBlock      matchgroup=jsBraces       start="{"  end="}"  contains=@jsAll,jsParensErrA,jsParensErrB,jsParen,jsBracket,jsBlock,jsObjectKey,@htmlPreproc,jsClassDefinition fold extend
+syntax region  jsBlock      matchgroup=jsBraces       start="{"  end="}"  contains=@jsAll,jsParensErrA,jsParensErrB,jsParen,jsBracket,jsBlock,jsObjectKey,@htmlPreproc,jsClassDefinition extend
 syntax region  jsTernaryIf  matchgroup=jsTernaryIfOperator start=+?+  end=+:+  contains=@jsExpression,jsTernaryIf
 
 "" catch errors caused by wrong parenthesis
@@ -200,8 +200,11 @@ syntax match   jsFuncArgDestructuring contained /\({\|}\|=\|:\|\[\|\]\)/ extend
 exe 'syntax match jsFunction /\<function\>/ nextgroup=jsGenerator,jsFuncName,jsFuncArgs skipwhite '.(exists('g:javascript_conceal_function') ? 'conceal cchar='.g:javascript_conceal_function : '')
 exe 'syntax match jsArrowFunction /=>/ skipwhite nextgroup=jsFuncBlock contains=jsFuncBraces '.(exists('g:javascript_conceal_arrow_function') ? 'conceal cchar='.g:javascript_conceal_arrow_function : '')
 
-syntax match   jsGenerator       contained '\*' nextgroup=jsFuncName,jsFuncArgs skipwhite
-syntax match   jsFuncName        contained /\<[a-zA-Z_$][0-9a-zA-Z_$]*/ nextgroup=jsFuncArgs skipwhite
+syntax match   jsGenerator       contained /\*/ nextgroup=jsFuncName,jsFuncArgs skipwhite skipempty
+syntax match   jsFuncName        contained /\<[a-zA-Z_$][0-9a-zA-Z_$]*/ nextgroup=jsFuncArgs skipwhite skipempty
+" These versions of jsFuncName is for use in object declarations with no key
+syntax match   jsFuncName        contained /\%(^[\r\n\t ]*\)\@<=[*\r\n\t ]*[a-zA-Z_$][0-9a-zA-Z_$]*[\r\n\t ]*(\@=/ nextgroup=jsFuncArgs skipwhite skipempty containedin=jsBlock contains=jsGenerator
+syntax match   jsFuncName        contained /\%(,[\r\n\t ]*\)\@<=[*\r\n\t ]*[a-zA-Z_$][0-9a-zA-Z_$]*[\r\n\t ]*(\@=/ nextgroup=jsFuncArgs skipwhite skipempty containedin=jsBlock contains=jsGenerator
 syntax region  jsFuncArgs        contained matchgroup=jsFuncParens start='(' end=')' contains=jsFuncArgCommas,jsFuncArgRest,jsComment,jsLineComment,jsStringS,jsStringD,jsNumber,jsFuncArgDestructuring,jsArrowFunction,jsParen,jsArrowFuncArgs nextgroup=jsFuncBlock keepend skipwhite skipempty
 syntax match   jsFuncArgCommas   contained ','
 syntax match   jsFuncArgRest     contained /\%(\.\.\.[a-zA-Z_$][0-9a-zA-Z_$]*\))/ contains=jsFuncArgRestDots