Force "early error" tests to fail if evaluated

This pattern makes expectations more explicit by making test files more
literal.

src/async-functions/await-as-binding-identifier-escaped.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   var \u0061wait;

src/async-functions/await-as-binding-identifier.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   var await;

src/async-functions/await-as-identifier-reference-escaped.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   void \u0061wait;

src/async-functions/await-as-identifier-reference.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   void await;

src/async-functions/await-as-label-identifier-escaped.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   \u0061wait: ;

src/async-functions/await-as-label-identifier.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   await: ;

src/async-generators/await-as-binding-identifier-escaped.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   var \u0061wait;

src/async-generators/await-as-binding-identifier.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   var await;

src/async-generators/await-as-identifier-reference-escaped.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   void \u0061wait;

src/async-generators/await-as-identifier-reference.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   void await;

src/async-generators/await-as-label-identifier-escaped.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   \u0061wait: ;

src/async-generators/await-as-label-identifier.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   await: ;

src/async-generators/yield-as-binding-identifier-escaped.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   var yi\u0065ld;

src/async-generators/yield-as-binding-identifier.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   var yield;

src/async-generators/yield-as-identifier-reference-escaped.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   void yi\u0065ld;

src/async-generators/yield-as-identifier-reference.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   void yield;

src/async-generators/yield-as-label-identifier-escaped.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   yi\u0065ld: ;

src/async-generators/yield-as-label-identifier.case

@@ -17,5 +17,7 @@ negative:
 template: syntax
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   yield: ;

src/async-generators/yield-identifier-spread-strict.case

@@ -19,6 +19,8 @@ negative:
   type: SyntaxError
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   return {
      ...(function() {

src/async-generators/yield-identifier-strict.case

@@ -12,6 +12,8 @@ negative:
   type: SyntaxError
 ---*/
 
+//- setup
+throw "Test262: This statement should not be evaluated.";
 //- body
   (function() {
     var yield;