#502 Parse more undefined symbol errors

ale_linters/java/javac.vim

@@ -86,7 +86,7 @@ function! ale_linters#java#javac#Handle(buffer, lines) abort
     " Main.java:16: error: ';' expected
 
     let l:pattern = '\v^.*:(\d+): (.+):(.+)$'
-    let l:symbol_pattern = '\v^ +symbol: *(class) +([^ ]+)'
+    let l:symbol_pattern = '\v^ +symbol: *(class|method) +([^ ]+)'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, [l:pattern, l:symbol_pattern])

test/handler/test_javac_handler.vader

@@ -27,6 +27,11 @@ Execute(The javac handler should handle cannot find symbol errors):
   \     'text': 'warning: some warning',
   \     'type': 'W',
   \   },
+  \   {
+  \     'lnum': 42,
+  \     'text': 'error: cannot find symbol: bar()',
+  \     'type': 'E',
+  \   },
   \ ],
   \ ale_linters#java#javac#Handle(347, [
   \   '/tmp/vLPr4Q5/33/foo.java:1: error: some error',
@@ -41,5 +46,9 @@ Execute(The javac handler should handle cannot find symbol errors):
   \   '  symbol:   class BadName2',
   \   '  location: class Bar',
   \   '/tmp/vLPr4Q5/33/foo.java:37: warning: some warning',
-  \   '4 errors',
+  \   '/tmp/vLPr4Q5/264/foo.java:42: error: cannot find symbol',
+  \   '      this.bar();',
+  \   '          ^',
+  \   '  symbol: method bar()',
+  \   '5 errors',
   \ ])