Mostly repair the 6g compiler

etc/config/go.lud-mgodbolt01.properties

@@ -0,0 +1,8 @@
+defaultCompiler=6g
+compilers=6g
+compileFilename=file.go
+compiler.6g.exe=/home/mgodbolt/apps/go/go/pkg/tool/linux_amd64/6g
+compiler.6g.name=Yah
+compiler.6g.versionFlag=-V
+compiler.6g.compilerType=6g
+compiler.6g.supportsBinary=false

lib/compilers/6g.js

@@ -23,6 +23,7 @@
 // POSSIBILITY OF SUCH DAMAGE.
 
 var Compile = require('../base-compiler');
+var _ = require('underscore-node');
 
 function compile6g(info, env) {
     function convert6g(code) {
@@ -30,7 +31,7 @@ function compile6g(info, env) {
         var prevLine = null;
         var file = null;
         return code.map(function (obj) {
-            var line = obj.line;
+            var line = obj.text;
             var match = line.match(re);
             if (match) {
                 var res = "";