Switch typescript provider, closes #428

syntax/basic/members.vim

@@ -0,0 +1,50 @@
+if exists('g:polyglot_disabled') && index(g:polyglot_disabled, 'typescript') != -1
+  finish
+endif
+
+syntax keyword typescriptConstructor           contained constructor
+  \ nextgroup=@typescriptCallSignature
+  \ skipwhite skipempty
+
+
+syntax cluster memberNextGroup contains=typescriptMemberOptionality,typescriptTypeAnnotation,@typescriptCallSignature
+
+syntax match typescriptMember /\K\k*/
+  \ nextgroup=@memberNextGroup
+  \ contained skipwhite
+
+syntax match typescriptMethodAccessor contained /\v(get|set)\s\K/me=e-1
+  \ nextgroup=@typescriptMembers
+
+syntax cluster typescriptPropertyMemberDeclaration contains=
+  \ typescriptClassStatic,
+  \ typescriptAccessibilityModifier,
+  \ typescriptReadonlyModifier,
+  \ typescriptMethodAccessor,
+  \ @typescriptMembers
+  " \ typescriptMemberVariableDeclaration
+
+syntax match typescriptMemberOptionality /?\|!/ contained
+  \ nextgroup=typescriptTypeAnnotation,@typescriptCallSignature
+  \ skipwhite skipempty
+
+syntax cluster typescriptMembers contains=typescriptMember,typescriptStringMember,typescriptComputedMember
+
+syntax keyword typescriptClassStatic static
+  \ nextgroup=@typescriptMembers,typescriptAsyncFuncKeyword,typescriptReadonlyModifier
+  \ skipwhite contained
+
+syntax keyword typescriptAccessibilityModifier public private protected contained
+
+syntax keyword typescriptReadonlyModifier readonly contained
+
+syntax region  typescriptStringMember   contained
+  \ start=/\z(["']\)/  skip=/\\\\\|\\\z1\|\\\n/  end=/\z1/
+  \ nextgroup=@memberNextGroup
+  \ skipwhite skipempty
+
+syntax region  typescriptComputedMember   contained matchgroup=typescriptProperty
+  \ start=/\[/rs=s+1 end=/]/
+  \ contains=@typescriptValue,typescriptMember,typescriptMappedIn
+  \ nextgroup=@memberNextGroup
+  \ skipwhite skipempty