Updated vim plugins

sources_non_forked/vim-snippets/snippets/go.snippets

@@ -226,3 +226,29 @@ snippet bench benchmark function
 		}
 	}
 	${0}
+# composite literals
+snippet cl
+	type ${1:name} struct {
+		${2:attrName} ${3:attrType}
+	}
+# if key in a map
+snippet om
+	if ${1:value}, ok := ${2:map}[${3:key}]; ok == true {
+		${4:/* code */}
+	}
+
+# Grouped globals with anonymous struct
+snippet gg
+	var ${1:var} = struct{
+		${2:name} ${3:type}
+	}{
+		$2: ${4:value},
+	}
+
+# Marshalable json alias
+snippet ja
+	type ${1:parentType}Alias $1
+
+	func (p *$1) MarshalJSON() ([]byte, error) {
+		return json.Marshal(&struct{ *$1Alias }{(*$1Alias)(p)})
+	}