Make tests more strict

In ECMAScript 5, assignment to a non-reference value throws a runtime
ReferenceError. ECMAscript 6 specifies an early ReferenceError in these
cases. Tests for this behavior have been authored to pass in both cases.
Simplify these tests to describe and assert the early error.

test/language/expressions/assignment/S11.13.1_A2.1_T3.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator x = y uses GetValue and PutValue
-es5id: 11.13.1_A2.1_T3
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  1 = 1;
-  $ERROR('#1.1: 1 = 1 throw ReferenceError. Actual: ' + (1 = 1));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 = 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    1 = 1;
-  }
-}

test/language/expressions/assignment/non-simple-target.js

@@ -0,0 +1,14 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if LeftHandSideExpression is neither an
+    ObjectLiteral nor an ArrayLiteral and IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 = 1;

test/language/expressions/compound-assignment/S11.13.2_A2.2_T1.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T1
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x *= y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 *= 1);
-  $ERROR('#1.1: 1 *= 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 *= 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 *= 1);
-  }
-}

test/language/expressions/compound-assignment/S11.13.2_A2.2_T10.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T10
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x ^= y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 ^= 1);
-  $ERROR('#1.1: 1 ^= 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 ^= 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 ^= 1);
-  }
-}

test/language/expressions/compound-assignment/S11.13.2_A2.2_T11.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T11
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x |= y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 |= 1);
-  $ERROR('#1.1: 1 |= 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 |= 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 |= 1);
-  }
-}

test/language/expressions/compound-assignment/S11.13.2_A2.2_T2.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T2
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x /= y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 /= 1);
-  $ERROR('#1.1: 1 /= 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 /= 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 /= 1);
-  }
-}

test/language/expressions/compound-assignment/S11.13.2_A2.2_T3.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T3
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x %= y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 %= 1);
-  $ERROR('#1.1: 1 %= 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 %= 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 %= 1);
-  }
-}

test/language/expressions/compound-assignment/S11.13.2_A2.2_T4.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T4
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x += y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 += 1);
-  $ERROR('#1.1: 1 += 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 += 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 += 1);
-  }
-}

test/language/expressions/compound-assignment/S11.13.2_A2.2_T5.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T5
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x -= y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 -= 1);
-  $ERROR('#1.1: 1 -= 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 -= 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 -= 1);
-  }
-}

test/language/expressions/compound-assignment/S11.13.2_A2.2_T6.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T6
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x <<= y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 <<= 1);
-  $ERROR('#1.1: 1 <<= 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 <<= 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 <<= 1);
-  }
-}

test/language/expressions/compound-assignment/S11.13.2_A2.2_T7.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T7
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x >>= y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 >>= 1);
-  $ERROR('#1.1: 1 >>= 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 >>= 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 >>= 1);
-  }
-}

test/language/expressions/compound-assignment/S11.13.2_A2.2_T8.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T8
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x >>>= y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 >>>= 1);
-  $ERROR('#1.1: 1 >>>= 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 >>>= 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 >>>= 1);
-  }
-}

test/language/expressions/compound-assignment/S11.13.2_A2.2_T9.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Operator uses PutValue
-es5id: 11.13.2_A2.2_T9
-description: >
-    If Type(LeftHandSideExpression) is not Reference, throw
-    ReferenceError. Check operator is "x &= y"
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  var z = (1 &= 1);
-  $ERROR('#1.1: 1 &= 1 throw ReferenceError. Actual: ' + (z));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1 &= 1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    var z = (1 &= 1);
-  }
-}

test/language/expressions/compound-assignment/add-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound addition assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 += 1;

test/language/expressions/compound-assignment/btws-and-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound "bitwise and" assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 &= 1;

test/language/expressions/compound-assignment/btws-or-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound "bitwise or" assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 |= 1;

test/language/expressions/compound-assignment/btws-xor-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound "bitwise xor" assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 ^= 1;

test/language/expressions/compound-assignment/div-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound division assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 /= 1;

test/language/expressions/compound-assignment/left-shift-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound "left shift" assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 <<= 1;

test/language/expressions/compound-assignment/mod-div-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound "modular division" assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 %= 1;

test/language/expressions/compound-assignment/mult-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound multiplication assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 *= 1;

test/language/expressions/compound-assignment/right-shift-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound "right shift" assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 >>= 1;

test/language/expressions/compound-assignment/subtract-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound subtraction assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 -= 1;

test/language/expressions/compound-assignment/u-right-shift-non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.14.1
+description: Compound "unsigned right shift" assignment with non-simple target
+negative: ReferenceError
+---*/
+
+1 >>>= 1;

test/language/expressions/postfix-decrement/S11.3.2_A2.1_T3.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: >
- Operator x-- uses GetValue and PutValue
- ES6, 12.4.1 and 12.5.1 specify ReferenceError
-es5id: 11.3.2_A2.1_T3
-description: If Type(x) is not Reference, throw ReferenceError
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  1--;
-  $ERROR('#1.1: 1-- throw ReferenceError. Actual: ' + (1--));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1-- throw ReferenceError. Actual: ' + (e));  
-  } else {
-    1--;
-  }
-}

test/language/expressions/postfix-decrement/non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.4.1
+description: Applied to a non-simple assignment target
+negative: ReferenceError
+---*/
+
+1--;

test/language/expressions/postfix-increment/S11.3.1_A2.1_T3.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: > 
- Operator x++ uses GetValue and PutValue
- ES6, 12.4.1 and 12.5.1 specify ReferenceError
-es5id: 11.3.1_A2.1_T3
-description: If Type(x) is not Reference, throw ReferenceError
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  1++;
-  $ERROR('#1.1: 1++ throw ReferenceError. Actual: ' + (1++));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: 1++ throw ReferenceError. Actual: ' + (e));  
-  } else {
-    1++;
-  }
-}

test/language/expressions/postfix-increment/non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+es6id: 12.4.1
+description: Applied to a non-simple assignment target
+negative: ReferenceError
+---*/
+
+1++;

test/language/expressions/prefix-decrement/S11.4.5_A2.1_T3.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: > 
- Operator --x uses GetValue and PutValue
- ES6 12.5.1 specifies this as ReferenceError
-es5id: 11.4.5_A2.1_T3
-description: If Type(x) is not Reference, throw ReferenceError
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  --1;
-  $ERROR('#1.1: --1 throw ReferenceError. Actual: ' + (--1));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: --1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    --1;
-  }
-}

test/language/expressions/prefix-decrement/non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+    It is an early Reference Error if IsValidSimpleAssignmentTarget of
+    UnaryExpression is false.
+es5id: 12.5.1
+description: Applied to a non-simple assignment target
+negative: ReferenceError
+---*/
+
+--1;

test/language/expressions/prefix-increment/S11.4.4_A2.1_T3.js

@@ -1,24 +0,0 @@
-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: >
- Operator ++x uses GetValue and PutValue
- ES6, 12.4.1 and 12.5.1 specify ReferenceError
-es5id: 11.4.4_A2.1_T3
-description: If Type(x) is not Reference, throw ReferenceError
-negative: ReferenceError
----*/
-
-//CHECK#1
-try {
-  ++1;
-  $ERROR('#1.1: ++1 throw ReferenceError. Actual: ' + (++1));  
-}
-catch (e) {
-  if ((e instanceof ReferenceError) !== true) {
-    $ERROR('#1.2: ++1 throw ReferenceError. Actual: ' + (e));  
-  } else {
-    ++1;
-  }
-}

test/language/expressions/prefix-increment/non-simple.js

@@ -0,0 +1,13 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: >
+   It is an early Reference Error if IsValidSimpleAssignmentTarget of
+   UnaryExpression is false.
+es6id: 12.5.1
+description: Applied to a non-simple assignment target
+negative: ReferenceError
+---*/
+
+++1;