Move type-related tests for go grammar into their own file

spec/runtime/languages/golang/main.txt

@@ -27,68 +27,3 @@ func main() {
     (func_declaration (var_name) (statement_block
         (comment))))
 
-==========================================
-parses complex types
-==========================================
-package main
-
-type x *struct {
-    field1 []int64
-    field2 map[string]interface{
-        DoStuff()
-    }
-}
----
-(program
-    (package_directive (package_name))
-    (type_declaration
-        (type_name)
-        (pointer_type (struct_type
-            (var_name) (slice_type (type_name))
-            (var_name) (map_type (type_name) (interface_type (var_name)))))))
-
-============================================
-parses functions arguments
-============================================
-package main
-
-func oneArg(arg1 interface{}) {}
-func argsOfSameType(arg1, arg2 string) {}
-func argsOfDifferentTypes() (arg1 string, arg2 int64) {}
----
-(program
-    (package_directive (package_name))
-    (func_declaration (var_name) (var_name) (interface_type) (statement_block))
-    (func_declaration (var_name) (var_name) (var_name) (type_name) (statement_block))
-    (func_declaration (var_name) (var_name) (type_name) (var_name) (type_name) (statement_block)))
-
-============================================
-parses functions with unnamed return values
-============================================
-package main
-
-func oneReturnValue() string {}
-func multipleReturnValues() (string, int64, error) {}
----
-(program
-    (package_directive (package_name))
-    (func_declaration (var_name) (type_name)
-        (statement_block))
-    (func_declaration (var_name) (type_name) (type_name) (type_name)
-        (statement_block)))
-
-============================================
-parses functions with named return values
-============================================
-package main
-
-func oneReturnValue() (result string) {}
-func multipleReturnValues() (result string, count int64, err error) {}
----
-(program
-    (package_directive (package_name))
-    (func_declaration (var_name) (var_name) (type_name)
-        (statement_block))
-    (func_declaration (var_name) (var_name) (type_name) (var_name) (type_name) (var_name) (type_name)
-        (statement_block)))
-

spec/runtime/languages/golang/types.txt

@@ -0,0 +1,65 @@
+==========================================
+parses complex types
+==========================================
+package main
+
+type x *struct {
+    field1 []int64
+    field2 map[string]interface{
+        DoStuff()
+    }
+}
+---
+(program
+    (package_directive (package_name))
+    (type_declaration
+        (type_name)
+        (pointer_type (struct_type
+            (var_name) (slice_type (type_name))
+            (var_name) (map_type (type_name) (interface_type (var_name)))))))
+
+============================================
+parses functions arguments
+============================================
+package main
+
+func oneArg(arg1 interface{}) {}
+func argsOfSameType(arg1, arg2 string) {}
+func argsOfDifferentTypes() (arg1 string, arg2 int64) {}
+---
+(program
+    (package_directive (package_name))
+    (func_declaration (var_name) (var_name) (interface_type) (statement_block))
+    (func_declaration (var_name) (var_name) (var_name) (type_name) (statement_block))
+    (func_declaration (var_name) (var_name) (type_name) (var_name) (type_name) (statement_block)))
+
+============================================
+parses functions with unnamed return values
+============================================
+package main
+
+func oneReturnValue() string {}
+func multipleReturnValues() (string, int64, error) {}
+---
+(program
+    (package_directive (package_name))
+    (func_declaration (var_name) (type_name)
+        (statement_block))
+    (func_declaration (var_name) (type_name) (type_name) (type_name)
+        (statement_block)))
+
+============================================
+parses functions with named return values
+============================================
+package main
+
+func oneReturnValue() (result string) {}
+func multipleReturnValues() (result string, count int64, err error) {}
+---
+(program
+    (package_directive (package_name))
+    (func_declaration (var_name) (var_name) (type_name)
+        (statement_block))
+    (func_declaration (var_name) (var_name) (type_name) (var_name) (type_name) (var_name) (type_name)
+        (statement_block)))
+