Update gqlparser and gqlgen dependencies (#282)

This updates both gqlparser and gqlgen dependencies. This was prompted
by an error report in gqlparser.

gqlparser also preserves comments now, so some test cases might need
tweaking here.

Per @tduong2049 in vektah/gqlparser#269 

### What happened?
> I am using [genqlient](https://github.com/Khan/genqlient/) to generate
GraphQL operations into Go code. It uses gqlparser to validate a
provided graph before generating code.
> In this case, I am using a supergraph composed from multiple subgraphs
via Rover CLI.

> Prior to
[v2.5.2](https://github.com/vektah/gqlparser/releases/tag/v2.5.2),
gqlparser parses the supergraph and returns no errors.
> Upon upgrading to v2.5.2+, I get the following error when running `go
run github.com/Khan/genqlient`:
> `invalid schema: Argument extension for directive join__type cannot be
null.`

> Possibly related to #258?

### What did you expect?
No parsing errors when running: `go run github.com/Khan/genqlient` on a
supergraph.
However, a validation error is returned when parsing `@join__type`
directives.

### Minimal graphql.schema and models to reproduce
```
type AircraftManufacturer
  @join__type(graph: AIRCRAFT, key: "uuid")
{
  uuid: ID!
  name: String!
}
```


Signed-off-by: Steve Coffman <steve@khanacademy.org>

---------

Signed-off-by: Steve Coffman <steve@khanacademy.org>

generate/parse_test.go

@@ -3,6 +3,7 @@ package generate
 import (
 	"path/filepath"
 	"sort"
+	"strings"
 	"testing"
 
 	"github.com/vektah/gqlparser/v2/ast"
@@ -57,7 +58,8 @@ func TestParse(t *testing.T) {
 		t.Run(ext, func(t *testing.T) {
 			queries := getTestQueries(t, ext)
 
-			got, want := ast.Dump(graphqlQueries), ast.Dump(queries)
+			got, want := ast.Dump(graphqlQueries), removeComments(ast.Dump(queries))
+
 			if got != want {
 				// TODO: nice diffing
 				t.Errorf("got:\n%v\nwant:\n%v\n", got, want)
@@ -66,6 +68,18 @@ func TestParse(t *testing.T) {
 	}
 }
 
+func removeComments(gotWithComments string) string {
+	var gots []string
+	for _, s := range strings.Split(gotWithComments, "\n") {
+		if strings.Contains(s, `Comment:`) {
+			continue
+		}
+		gots = append(gots, s)
+	}
+	got := strings.Join(gots, "\n")
+	return got
+}
+
 // TestParseErrors tests that query-extraction from different language source files
 // produces appropriate errors if your query is invalid.
 func TestParseErrors(t *testing.T) {

generate/testdata/snapshots/TestGenerate-ComplexInlineFragments.graphql-ComplexInlineFragments.graphql.json

@@ -2,7 +2,7 @@
   "operations": [
     {
       "operationName": "ComplexInlineFragments",
-      "query": "\nquery ComplexInlineFragments {\n\troot {\n\t\tid\n\t\t... on Topic {\n\t\t\tschoolGrade\n\t\t}\n\t\t... on Content {\n\t\t\tname\n\t\t}\n\t}\n\trandomItem {\n\t\t__typename\n\t\tid\n\t\t... on Article {\n\t\t\ttext\n\t\t}\n\t\t... on Content {\n\t\t\tname\n\t\t}\n\t\t... on HasDuration {\n\t\t\tduration\n\t\t}\n\t}\n\trepeatedStuff: randomItem {\n\t\t__typename\n\t\tid\n\t\tid\n\t\turl\n\t\totherId: id\n\t\t... on Article {\n\t\t\tname\n\t\t\ttext\n\t\t\totherName: name\n\t\t}\n\t\t... on Content {\n\t\t\tid\n\t\t\tname\n\t\t\totherName: name\n\t\t}\n\t\t... on HasDuration {\n\t\t\tduration\n\t\t}\n\t}\n\tconflictingStuff: randomItem {\n\t\t__typename\n\t\t... on Article {\n\t\t\tthumbnail {\n\t\t\t\tid\n\t\t\t\tthumbnailUrl\n\t\t\t}\n\t\t}\n\t\t... on Video {\n\t\t\tthumbnail {\n\t\t\t\tid\n\t\t\t\ttimestampSec\n\t\t\t}\n\t\t}\n\t}\n\tnestedStuff: randomItem {\n\t\t__typename\n\t\t... on Topic {\n\t\t\tchildren {\n\t\t\t\t__typename\n\t\t\t\tid\n\t\t\t\t... on Article {\n\t\t\t\t\ttext\n\t\t\t\t\tparent {\n\t\t\t\t\t\t... on Content {\n\t\t\t\t\t\t\tname\n\t\t\t\t\t\t\tparent {\n\t\t\t\t\t\t\t\t... on Topic {\n\t\t\t\t\t\t\t\t\tchildren {\n\t\t\t\t\t\t\t\t\t\t__typename\n\t\t\t\t\t\t\t\t\t\tid\n\t\t\t\t\t\t\t\t\t\tname\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n",
+      "query": "\n# We test all the spread cases from docs/DESIGN.md, see there for more context\n# on each, as well as various other nonsense.  But for abstract-in-abstract\n# spreads, we can't test cases (4b) and (4c), where I implements J or vice\n# versa, because gqlparser doesn't support interfaces that implement other\n# interfaces yet.\nquery ComplexInlineFragments {\n\troot {\n\t\tid\n\t\t... on Topic {\n\t\t\tschoolGrade\n\t\t}\n\t\t# (1) object spread in object scope\n\t\t... on Content {\n\t\t\tname\n\t\t}\n\t}\n\trandomItem {\n\t\t__typename\n\t\tid\n\t\t... on Article {\n\t\t\ttext\n\t\t}\n\t\t# (2) object spread in abstract scope\n\t\t... on Content {\n\t\t\tname\n\t\t}\n\t\t# (4a) abstract spread in abstract scope, I == J\n\t\t... on HasDuration {\n\t\t\tduration\n\t\t}\n\t}\n\trepeatedStuff: randomItem {\n\t\t__typename\n\t\tid\n\t\tid\n\t\turl\n\t\totherId: id\n\t\t... on Article {\n\t\t\tname\n\t\t\ttext\n\t\t\totherName: name\n\t\t}\n\t\t... on Content {\n\t\t\tid\n\t\t\tname\n\t\t\totherName: name\n\t\t}\n\t\t... on HasDuration {\n\t\t\tduration\n\t\t}\n\t}\n\tconflictingStuff: randomItem {\n\t\t__typename\n\t\t# These two have different types!  Naming gets complicated.  Note GraphQL\n\t\t# says [1] that you can only have such naming conflicts when the fields are\n\t\t# both on object-typed spreads (reasonable, so they can never collide) and\n\t\t# they are of \"shapes that can be merged\", e.g. both nullable objects,\n\t\t# which seems very strange to me but is the most interesting case for us\n\t\t# anyway (since where we could have trouble is naming the result types).\n\t\t# [1] https://spec.graphql.org/draft/#SameResponseShape()\n\t\t# TODO(benkraft): This actually generates the wrong thing right now (the\n\t\t# two thumbnail types get the same name, and one clobbers the other).  Fix\n\t\t# in a follow-up commit.\n\t\t... on Article {\n\t\t\tthumbnail {\n\t\t\t\tid\n\t\t\t\tthumbnailUrl\n\t\t\t}\n\t\t}\n\t\t... on Video {\n\t\t\tthumbnail {\n\t\t\t\tid\n\t\t\t\ttimestampSec\n\t\t\t}\n\t\t}\n\t}\n\tnestedStuff: randomItem {\n\t\t__typename\n\t\t... on Topic {\n\t\t\tchildren {\n\t\t\t\t__typename\n\t\t\t\tid\n\t\t\t\t... on Article {\n\t\t\t\t\ttext\n\t\t\t\t\tparent {\n\t\t\t\t\t\t... on Content {\n\t\t\t\t\t\t\tname\n\t\t\t\t\t\t\tparent {\n\t\t\t\t\t\t\t\t... on Topic {\n\t\t\t\t\t\t\t\t\tchildren {\n\t\t\t\t\t\t\t\t\t\t__typename\n\t\t\t\t\t\t\t\t\t\tid\n\t\t\t\t\t\t\t\t\t\tname\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n",
       "sourceLocation": "testdata/queries/ComplexInlineFragments.graphql"
     }
   ]

generate/testdata/snapshots/TestGenerate-ComplexNamedFragments.graphql-ComplexNamedFragments.graphql.json

@@ -2,7 +2,7 @@
   "operations": [
     {
       "operationName": "ComplexNamedFragments",
-      "query": "\nquery ComplexNamedFragments {\n\t... on Query {\n\t\t... QueryFragment\n\t}\n}\nfragment QueryFragment on Query {\n\t... InnerQueryFragment\n}\nfragment InnerQueryFragment on Query {\n\trandomItem {\n\t\t__typename\n\t\tid\n\t\tname\n\t\t... VideoFields\n\t\t... ContentFields\n\t}\n\trandomLeaf {\n\t\t__typename\n\t\t... VideoFields\n\t\t... MoreVideoFields\n\t\t... ContentFields\n\t}\n\totherLeaf: randomLeaf {\n\t\t__typename\n\t\t... on Video {\n\t\t\t... MoreVideoFields\n\t\t\t... ContentFields\n\t\t}\n\t\t... ContentFields\n\t}\n}\nfragment VideoFields on Video {\n\tid\n\tname\n\turl\n\tduration\n\tthumbnail {\n\t\tid\n\t}\n\t... ContentFields\n}\nfragment ContentFields on Content {\n\tname\n\turl\n}\nfragment MoreVideoFields on Video {\n\tid\n\tparent {\n\t\tname\n\t\turl\n\t\t... ContentFields\n\t\tchildren {\n\t\t\t__typename\n\t\t\t... VideoFields\n\t\t}\n\t}\n}\n",
+      "query": "\nquery ComplexNamedFragments {\n\t... on Query {\n\t\t... QueryFragment\n\t}\n}\nfragment QueryFragment on Query {\n\t... InnerQueryFragment\n}\nfragment InnerQueryFragment on Query {\n\trandomItem {\n\t\t__typename\n\t\tid\n\t\tname\n\t\t... VideoFields\n\t\t... ContentFields\n\t}\n\trandomLeaf {\n\t\t__typename\n\t\t... VideoFields\n\t\t... MoreVideoFields\n\t\t... ContentFields\n\t}\n\totherLeaf: randomLeaf {\n\t\t__typename\n\t\t... on Video {\n\t\t\t... MoreVideoFields\n\t\t\t... ContentFields\n\t\t}\n\t\t... ContentFields\n\t}\n}\nfragment VideoFields on Video {\n\tid\n\tname\n\turl\n\tduration\n\tthumbnail {\n\t\tid\n\t}\n\t... ContentFields\n}\nfragment ContentFields on Content {\n\tname\n\turl\n}\n# @genqlient(pointer: true)\nfragment MoreVideoFields on Video {\n\tid\n\tparent {\n\t\tname\n\t\turl\n\t\t... ContentFields\n\t\t# @genqlient(pointer: false)\n\t\tchildren {\n\t\t\t__typename\n\t\t\t... VideoFields\n\t\t}\n\t}\n}\n",
       "sourceLocation": "testdata/queries/ComplexNamedFragments.graphql"
     }
   ]

generate/testdata/snapshots/TestGenerate-CustomMarshalSlice.graphql-CustomMarshalSlice.graphql.json

@@ -2,7 +2,7 @@
   "operations": [
     {
       "operationName": "CustomMarshalSlice",
-      "query": "\nquery CustomMarshalSlice ($datesss: [[[Date!]!]!]!, $datesssp: [[[Date!]!]!]!) {\n\tacceptsListOfListOfListsOfDates(datesss: $datesss)\n\twithPointer: acceptsListOfListOfListsOfDates(datesss: $datesssp)\n}\n",
+      "query": "\nquery CustomMarshalSlice ($datesss: [[[Date!]!]!]!, # @genqlient(pointer: true)\n$datesssp: [[[Date!]!]!]!) {\n\tacceptsListOfListOfListsOfDates(datesss: $datesss)\n\twithPointer: acceptsListOfListOfListsOfDates(datesss: $datesssp)\n}\n",
       "sourceLocation": "testdata/queries/CustomMarshalSlice.graphql"
     }
   ]

generate/testdata/snapshots/TestGenerate-Flatten.graphql-Flatten.graphql.json

@@ -2,7 +2,7 @@
   "operations": [
     {
       "operationName": "ComplexNamedFragments",
-      "query": "\nquery ComplexNamedFragments {\n\t... QueryFragment\n}\nfragment QueryFragment on Query {\n\t... InnerQueryFragment\n}\nfragment InnerQueryFragment on Query {\n\trandomVideo {\n\t\t... VideoFields\n\t}\n\trandomItem {\n\t\t__typename\n\t\t... ContentFields\n\t}\n\totherVideo: randomVideo {\n\t\t... ContentFields\n\t}\n}\nfragment VideoFields on Video {\n\tid\n\tparent {\n\t\tvideoChildren {\n\t\t\t... ChildVideoFields\n\t\t}\n\t}\n}\nfragment ContentFields on Content {\n\tname\n\turl\n}\nfragment ChildVideoFields on Video {\n\tid\n\tname\n}\n",
+      "query": "\n# @genqlient(flatten: true)\nquery ComplexNamedFragments {\n\t... QueryFragment\n}\n# @genqlient(flatten: true)\nfragment QueryFragment on Query {\n\t... InnerQueryFragment\n}\nfragment InnerQueryFragment on Query {\n\t# @genqlient(flatten: true)\n\trandomVideo {\n\t\t... VideoFields\n\t}\n\t# @genqlient(flatten: true)\n\trandomItem {\n\t\t__typename\n\t\t... ContentFields\n\t}\n\t# @genqlient(flatten: true)\n\totherVideo: randomVideo {\n\t\t... ContentFields\n\t}\n}\nfragment VideoFields on Video {\n\tid\n\tparent {\n\t\t# @genqlient(flatten: true)\n\t\tvideoChildren {\n\t\t\t... ChildVideoFields\n\t\t}\n\t}\n}\nfragment ContentFields on Content {\n\tname\n\turl\n}\nfragment ChildVideoFields on Video {\n\tid\n\tname\n}\n",
       "sourceLocation": "testdata/queries/Flatten.graphql"
     }
   ]

generate/testdata/snapshots/TestGenerate-Hasura.graphql-Hasura.graphql.json

@@ -2,7 +2,7 @@
   "operations": [
     {
       "operationName": "GetPokemon",
-      "query": "\nquery GetPokemon ($where: getPokemonBoolExp!) {\n\tgetPokemon(where: $where) {\n\t\tspecies\n\t\tlevel\n\t}\n}\n",
+      "query": "\n# @genqlient(pointer: true)\nquery GetPokemon ($where: getPokemonBoolExp!) {\n\tgetPokemon(where: $where) {\n\t\tspecies\n\t\tlevel\n\t}\n}\n",
       "sourceLocation": "testdata/queries/Hasura.graphql"
     }
   ]

generate/testdata/snapshots/TestGenerate-InterfaceListField.graphql-InterfaceListField.graphql.json

@@ -2,7 +2,7 @@
   "operations": [
     {
       "operationName": "InterfaceListField",
-      "query": "\nquery InterfaceListField {\n\troot {\n\t\tid\n\t\tname\n\t\tchildren {\n\t\t\t__typename\n\t\t\tid\n\t\t\tname\n\t\t}\n\t}\n\twithPointer: root {\n\t\tid\n\t\tname\n\t\tchildren {\n\t\t\t__typename\n\t\t\tid\n\t\t\tname\n\t\t}\n\t}\n}\n",
+      "query": "\nquery InterfaceListField {\n\troot {\n\t\tid\n\t\tname\n\t\tchildren {\n\t\t\t__typename\n\t\t\tid\n\t\t\tname\n\t\t}\n\t}\n\t# @genqlient(pointer: true)\n\twithPointer: root {\n\t\tid\n\t\tname\n\t\tchildren {\n\t\t\t__typename\n\t\t\tid\n\t\t\tname\n\t\t}\n\t}\n}\n",
       "sourceLocation": "testdata/queries/InterfaceListField.graphql"
     }
   ]

generate/testdata/snapshots/TestGenerate-InterfaceListOfListsOfListsField.graphql-InterfaceListOfListsOfListsField.graphql.json

@@ -2,7 +2,7 @@
   "operations": [
     {
       "operationName": "InterfaceListOfListOfListsField",
-      "query": "\nquery InterfaceListOfListOfListsField {\n\tlistOfListsOfListsOfContent {\n\t\t__typename\n\t\tid\n\t\tname\n\t}\n\twithPointer: listOfListsOfListsOfContent {\n\t\t__typename\n\t\tid\n\t\tname\n\t}\n}\n",
+      "query": "\nquery InterfaceListOfListOfListsField {\n\tlistOfListsOfListsOfContent {\n\t\t__typename\n\t\tid\n\t\tname\n\t}\n\t# @genqlient(pointer: true)\n\twithPointer: listOfListsOfListsOfContent {\n\t\t__typename\n\t\tid\n\t\tname\n\t}\n}\n",
       "sourceLocation": "testdata/queries/InterfaceListOfListsOfListsField.graphql"
     }
   ]

generate/testdata/snapshots/TestGenerate-InterfaceNoFragments.graphql-InterfaceNoFragments.graphql.json

@@ -2,7 +2,7 @@
   "operations": [
     {
       "operationName": "InterfaceNoFragmentsQuery",
-      "query": "\nquery InterfaceNoFragmentsQuery {\n\troot {\n\t\tid\n\t\tname\n\t}\n\trandomItem {\n\t\t__typename\n\t\tid\n\t\tname\n\t}\n\trandomItemWithTypeName: randomItem {\n\t\t__typename\n\t\tid\n\t\tname\n\t}\n\twithPointer: randomItem {\n\t\t__typename\n\t\tid\n\t\tname\n\t}\n}\n",
+      "query": "\nquery InterfaceNoFragmentsQuery {\n\troot {\n\t\tid\n\t\tname\n\t}\n\t# (make sure sibling fields work)\n\trandomItem {\n\t\t__typename\n\t\tid\n\t\tname\n\t}\n\trandomItemWithTypeName: randomItem {\n\t\t__typename\n\t\tid\n\t\tname\n\t}\n\t# @genqlient(pointer: true)\n\twithPointer: randomItem {\n\t\t__typename\n\t\tid\n\t\tname\n\t}\n}\n",
       "sourceLocation": "testdata/queries/InterfaceNoFragments.graphql"
     }
   ]

generate/testdata/snapshots/TestGenerate-MultipleDirectives.graphql-MultipleDirectives.graphql.json

@@ -2,7 +2,7 @@
   "operations": [
     {
       "operationName": "MultipleDirectives",
-      "query": "\nquery MultipleDirectives ($query: UserQueryInput, $queries: [UserQueryInput]) {\n\tuser(query: $query) {\n\t\tid\n\t}\n\tusers(query: $queries) {\n\t\tid\n\t}\n}\n",
+      "query": "\n# @genqlient(typename: \"MyMultipleDirectivesResponse\")\n# @genqlient(omitempty: true)\n# @genqlient(pointer: true)\nquery MultipleDirectives (# @genqlient(pointer: false)\n# @genqlient(typename: \"MyInput\")\n$query: UserQueryInput, $queries: [UserQueryInput]) {\n\tuser(query: $query) {\n\t\tid\n\t}\n\tusers(query: $queries) {\n\t\tid\n\t}\n}\n",
       "sourceLocation": "testdata/queries/MultipleDirectives.graphql"
     }
   ]

generate/testdata/snapshots/TestGenerate-Omitempty.graphql-Omitempty.graphql.json

@@ -2,7 +2,7 @@
   "operations": [
     {
       "operationName": "OmitEmptyQuery",
-      "query": "\nquery OmitEmptyQuery ($query: UserQueryInput, $queries: [UserQueryInput], $dt: DateTime, $tz: String, $tzNoOmitEmpty: String) {\n\tuser(query: $query) {\n\t\tid\n\t}\n\tusers(query: $queries) {\n\t\tid\n\t}\n\tmaybeConvert(dt: $dt, tz: $tz)\n\tconvert2: maybeConvert(dt: $dt, tz: $tzNoOmitEmpty)\n}\n",
+      "query": "\n# @genqlient(omitempty: true)\n# @genqlient(for: \"UserQueryInput.id\", omitempty: false)\nquery OmitEmptyQuery ($query: UserQueryInput, $queries: [UserQueryInput], $dt: DateTime, $tz: String, # @genqlient(omitempty: false)\n$tzNoOmitEmpty: String) {\n\tuser(query: $query) {\n\t\tid\n\t}\n\tusers(query: $queries) {\n\t\tid\n\t}\n\tmaybeConvert(dt: $dt, tz: $tz)\n\tconvert2: maybeConvert(dt: $dt, tz: $tzNoOmitEmpty)\n}\n",
       "sourceLocation": "testdata/queries/Omitempty.graphql"
     }
   ]