Improve '}' auto inserting for go language.

Adding "} else if ... {" was not correctly handled.

rc/filetype/go.kak

@@ -134,7 +134,7 @@ define-command -hidden go-insert-on-new-line %[
             try %[ execute-keys -draft k<a-x>s^\h+<ret>"xy ] catch %[ reg x '' ]
             try %[
                 # Validate previous line and that it is not closed yet.
-                execute-keys -draft k<a-x> <a-k>^<c-r>x.*\{\h*\(?\h*$<ret> J}iJ<a-x> <a-K>^<c-r>x(\)?\h*\})$<ret>
+                execute-keys -draft k<a-x> <a-k>^<c-r>x.*\{\h*\(?\h*$<ret> j}iJ<a-x> <a-K>^<c-r>x\)?\h*\}<ret>
                 # Insert closing '}'.
                 execute-keys -draft o<c-r>x}<esc>
                 # Delete trailing '}' on the line below the '{'.
@@ -148,7 +148,7 @@ define-command -hidden go-insert-on-new-line %[
             try %[ execute-keys -draft k<a-x>s^\h+<ret>"xy ] catch %[ reg x '' ]
             try %[
                 # Validate previous line and that it is not closed yet.
-                execute-keys -draft k<a-x> <a-k>^<c-r>x.*\(\h*$<ret> J}iJ<a-x> <a-K>^<c-r>x(\)\h*\}?)$<ret>
+                execute-keys -draft k<a-x> <a-k>^<c-r>x.*\(\h*$<ret> J}iJ<a-x> <a-K>^<c-r>x\)<ret>
                 # Insert closing ')'.
                 execute-keys -draft o<c-r>x)<esc>
                 # Delete trailing ')' on the line below the '('.

test/indent/go/deindent-generic-closing-brace/in

@@ -41,3 +41,9 @@
 12
       {(
   bar()%( ))}
+
+13
+a := []int{
+    someFunction(%( )
+    ),
+}

test/indent/go/deindent-generic-closing-brace/out

@@ -56,3 +56,10 @@
       {(
   bar()
       )}
+
+13
+a := []int{
+    someFunction(
+        
+    ),
+}