Renames for consistency in EffectSpecifiers

Author: DougGregor

CodeGeneration/Sources/SyntaxSupport/Traits.swift

@@ -56,15 +56,15 @@ public let TRAITS: [Trait] = [
       Child(name: "asyncSpecifier", kind: .token(choices: [.keyword(.async), .keyword(.reasync)]), isOptional: true),
       Child(name: "unexpectedBetweenAsyncSpecifierAndThrowsSpecifier", kind: .node(kind: .unexpectedNodes), isOptional: true),
       Child(name: "throwsSpecifier", kind: .token(choices: [.keyword(.throws), .keyword(.rethrows)]), isOptional: true),
-      Child(name: "unexpectedBetweenThrowsSpecifierAndThrownType", kind: .node(kind: .unexpectedNodes), isOptional: true),
+      Child(name: "unexpectedBetweenThrowsSpecifierAndThrownError", kind: .node(kind: .unexpectedNodes), isOptional: true),
       Child(
         name: "thrownError",
         kind: .node(kind: .thrownTypeClause),
         experimentalFeature: .typedThrows,
         documentation: "The specific thrown error type.",
         isOptional: true
       ),
-      Child(name: "unexpectedAfterThrownType", kind: .node(kind: .unexpectedNodes), isOptional: true),
+      Child(name: "unexpectedAfterThrownError", kind: .node(kind: .unexpectedNodes), isOptional: true),
     ]
   ),
   Trait(