Handle tags that cover multiple scopes correctly

References: #430

autoload/tagbar/prototypes/basetag.vim

@@ -44,6 +44,11 @@ function! s:BaseTag.isPseudoTag() abort dict
     return 0
 endfunction
 
+" s:BaseTag.isSplitTag {{{1
+function! s:BaseTag.isSplitTag() abort dict
+    return 0
+endfunction
+
 " s:BaseTag.isKindheader() {{{1
 function! s:BaseTag.isKindheader() abort dict
     return 0

autoload/tagbar/prototypes/normaltag.vim

@@ -1,5 +1,7 @@
 let s:NormalTag = copy(g:tagbar#prototypes#basetag#BaseTag)
 
+let g:tagbar#prototypes#normaltag#NormalTag = s:NormalTag
+
 function! tagbar#prototypes#normaltag#new(name) abort
     let newobj = copy(s:NormalTag)
 

autoload/tagbar/prototypes/splittag.vim

@@ -0,0 +1,21 @@
+" A tag that was created because of a tag name that covers multiple scopes
+" Inherits the fields of the "main" tag it was split from.
+" May be replaced during tag processing if it appears as a normal tag later,
+" just like a pseudo tag.
+
+let s:SplitTag = copy(g:tagbar#prototypes#normaltag#NormalTag)
+
+function! tagbar#prototypes#splittag#new(name) abort
+    let newobj = copy(s:SplitTag)
+
+    call newobj._init(a:name)
+
+    return newobj
+endfunction
+
+function! s:SplitTag.isSplitTag() abort dict
+    return 1
+endfunction
+
+" Modeline {{{1
+" vim: ts=8 sw=4 sts=4 et foldenable foldmethod=marker foldcolumn=1

autoload/tagbar/types/uctags.vim

@@ -435,7 +435,7 @@ function! tagbar#types#uctags#init(supported_types) abort
         \ {'short' : 'v', 'long' : 'variables',            'fold' : 1, 'stl' : 0},
         \ {'short' : 'f', 'long' : 'functions',            'fold' : 0, 'stl' : 1}
     \ ]
-    let type_php.sro        = '\\\\'
+    let type_php.sro        = '\\'
     let type_php.kind2scope = {
         \ 'c' : 'class',
         \ 'n' : 'namespace',