Misc comment typos

src/__tests__/starWarsSchema.js

@@ -224,7 +224,7 @@ var droidType = new GraphQLObjectType({
  * This is the type that will be the root of our query, and the
  * entry point into our schema. It gives us the ability to fetch
  * objects by their IDs, as well as to fetch the undisputed hero
- * of the Star Wars triolgy, R2-D2, directly.
+ * of the Star Wars trilogy, R2-D2, directly.
  *
  * This implements the following type system shorthand:
  *   type Query {

src/executor/executor.js

@@ -89,7 +89,7 @@ type ExecutionContext = {
 }
 
 /**
- * The result of exeution. `data` is the result of executing the
+ * The result of execution. `data` is the result of executing the
  * query, `errors` is null if no errors occurred, and is a
  * non-empty array if an error occurred.
  */
@@ -483,7 +483,7 @@ function resolveField(
 /**
  * Resolves the field on the given source object. In particular, this
  * figures out the object that the field returns using the resolve function,
- * then calls completeField to corece scalars or execute the sub
+ * then calls completeField to coerce scalars or execute the sub
  * selection set for objects.
  */
 function resolveFieldOrError(
@@ -666,7 +666,7 @@ function isThenable(value: any): boolean {
 /**
  * This method looks up the field on the given type defintion.
  * It has special casing for the two introspection fields, __schema
- * and __typename. __typename is special becuase it can always be
+ * and __typename. __typename is special because it can always be
  * queried as a field, even in situations where no other fields
  * are allowed, like on a Union. __schema could get automatically
  * added to the query type, but that would require mutating type

src/language/source.js

@@ -11,7 +11,7 @@
 /**
  * A representation of source input to GraphQL. The name is optional,
  * but is mostly useful for clients who store GraphQL documents in
- * souce files; for example, if the GraphQL input is in a file Foo.graphql,
+ * source files; for example, if the GraphQL input is in a file Foo.graphql,
  * it might be useful for name to be "Foo.graphql".
  */
 export class Source {

src/language/visitor.js

@@ -42,7 +42,7 @@ export const BREAK = {};
 
 /**
  * visit() will walk through an AST using a depth first traversal, calling
- * the visitor's enter function at each node in the traveral, and calling the
+ * the visitor's enter function at each node in the traversal, and calling the
  * leave function after visiting that node and all of it's child nodes.
  *
  * By returning different values from the enter and leave functions, the