Upgrade to cadence/languageserver v0.12.6

Author: psiemens

go.mod

@@ -5,7 +5,7 @@ go 1.13
 require (
 	github.com/magiconair/properties v1.8.1 // indirect
 	github.com/onflow/cadence v0.12.5
-	github.com/onflow/cadence/languageserver v0.12.5
+	github.com/onflow/cadence/languageserver v0.12.6
 	github.com/onflow/flow-emulator v0.14.1
 	github.com/onflow/flow-go-sdk v0.14.2
 	github.com/psiemens/sconfig v0.0.0-20190623041652-6e01eb1354fc

go.sum

@@ -651,8 +651,8 @@ github.com/olekukonko/tablewriter v0.0.1/go.mod h1:vsDQFd/mU46D+Z4whnwzcISnGGzXW
 github.com/olekukonko/tablewriter v0.0.2-0.20190409134802-7e037d187b0c/go.mod h1:vsDQFd/mU46D+Z4whnwzcISnGGzXWMclvtLoiIKAKIo=
 github.com/onflow/cadence v0.12.5 h1:C3n5Sa7j5h6Y1S+vALgTneqUgR6NCnwiG6q80MBruME=
 github.com/onflow/cadence v0.12.5/go.mod h1:8NwJGO535nnY/+QWEMDc2rhvOFChToWQ9Bg7fUIIc/I=
-github.com/onflow/cadence/languageserver v0.12.5 h1:JVnCkKZ3ILpJxVQQxC553Qsm8lAIRB0Aa3OzdzaYfhA=
-github.com/onflow/cadence/languageserver v0.12.5/go.mod h1:bNgO29SQSftDz9got/YFpLa1ehvIWoPwcU2rXiQhzTs=
+github.com/onflow/cadence/languageserver v0.12.6 h1:AJE5cQVTRj4AGN/EjxOGwKRuWl/C++gFQ6nzMHSip5M=
+github.com/onflow/cadence/languageserver v0.12.6/go.mod h1:bNgO29SQSftDz9got/YFpLa1ehvIWoPwcU2rXiQhzTs=
 github.com/onflow/flow-core-contracts/lib/go/contracts v0.7.1 h1:nmIDPf94F9Ecx6ecGyd4uYBUl4LluntWLvtwAJYt4tw=
 github.com/onflow/flow-core-contracts/lib/go/contracts v0.7.1/go.mod h1:4zE/4A+5zyahxSFccQmcBqzp4ONXIwvGHaOKN8h8CRM=
 github.com/onflow/flow-emulator v0.14.1 h1:90XsBBjoI2b8dWhSlwK1ClnHzVZgO4m26U0zQPu4c5I=