Add 'var' declarations for strict mode

This change adds 'var' declarations for global variables to allow the tests to run in strict mode (see issue #35).
Extra care was taken to ensure the changes do not alter the test behavior, for example when implicit creation of global variables are part of the test.
Note: The change does not fix all strict mode errors due to missing 'var' declarations.

test/intl402/11.1.1_20_c.js

@@ -184,7 +184,7 @@ var currencyDigits = {
 
 Object.getOwnPropertyNames(currencyDigits).forEach(function (currency) {
     var digits = currencyDigits[currency];
-    format = Intl.NumberFormat([], {style: "currency", currency: currency});
+    var format = Intl.NumberFormat([], {style: "currency", currency: currency});
     var min = format.resolvedOptions().minimumFractionDigits;
     var max = format.resolvedOptions().maximumFractionDigits;
     if (min !== digits) {

test/language/expressions/call/S11.2.4_A1.2_T1.js

@@ -7,7 +7,7 @@ es5id: 11.2.4_A1.2_T1
 description: Function is declared with no FormalParameterList
 ---*/
 
-f_arg = function() {
+var f_arg = function() {
   return arguments;
 }
 

test/language/expressions/call/S11.2.4_A1.2_T2.js

@@ -7,7 +7,7 @@ es5id: 11.2.4_A1.2_T2
 description: Function is declared with FormalParameterList
 ---*/
 
-f_arg = function(x,y) {
+var f_arg = function(x,y) {
   return arguments;
 }
 

test/language/expressions/compound-assignment/S11.13.2_A1_T1.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T1
 description: Checking by using eval, check operator is x *= y
 ---*/
 
+var x;
+
 //CHECK#1
 x = -1;
 if ((eval("x\u0009*=\u0009-1")) !== 1) {

test/language/expressions/compound-assignment/S11.13.2_A1_T10.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T10
 description: Checking by using eval, check operator is x ^= y
 ---*/
 
+var x;
+
 //CHECK#1
 x = 1;
 if ((eval("x\u0009^=\u00091")) !== 0) {

test/language/expressions/compound-assignment/S11.13.2_A1_T11.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T11
 description: Checking by using eval, check operator is x |= y
 ---*/
 
+var x;
+
 //CHECK#1
 x = 0;
 if ((eval("x\u0009|=\u00091")) !== 1) {

test/language/expressions/compound-assignment/S11.13.2_A1_T2.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T2
 description: Checking by using eval, check operator is x /= y
 ---*/
 
+var x;
+
 //CHECK#1
 x = -1;
 if ((eval("x\u0009/=\u0009-1")) !== 1) {

test/language/expressions/compound-assignment/S11.13.2_A1_T3.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T3
 description: Checking by using eval, check operator is x %= y
 ---*/
 
+var x;
+
 //CHECK#1
 x = -1;
 if ((eval("x\u0009%=\u0009-1")) !== 0) {

test/language/expressions/compound-assignment/S11.13.2_A1_T4.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T4
 description: Checking by using eval, check operator is x += y
 ---*/
 
+var x;
+
 //CHECK#1
 x = -1;
 if ((eval("x\u0009+=\u0009-1")) !== -2) {

test/language/expressions/compound-assignment/S11.13.2_A1_T5.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T5
 description: Checking by using eval, check operator is x -= y
 ---*/
 
+var x;
+
 //CHECK#1
 x = -1;
 if ((eval("x\u0009-=\u00091")) !== -2) {

test/language/expressions/compound-assignment/S11.13.2_A1_T6.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T6
 description: Checking by using eval, check operator is x <<= y
 ---*/
 
+var x;
+
 //CHECK#1
 x = 1;
 if ((eval("x\u0009<<=\u00091")) !== 2) {

test/language/expressions/compound-assignment/S11.13.2_A1_T7.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T7
 description: Checking by using eval, check operator is x >>= y
 ---*/
 
+var x;
+
 //CHECK#1
 x = 1;
 if ((eval("x\u0009>>=\u00091")) !== 0) {

test/language/expressions/compound-assignment/S11.13.2_A1_T8.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T8
 description: Checking by using eval, check operator is x >>>= y
 ---*/
 
+var x;
+
 //CHECK#1
 x = 1;
 if ((eval("x\u0009>>>=\u00091")) !== 0) {

test/language/expressions/compound-assignment/S11.13.2_A1_T9.js

@@ -9,6 +9,8 @@ es5id: 11.13.2_A1_T9
 description: Checking by using eval, check operator is x &= y
 ---*/
 
+var x;
+
 //CHECK#1
 x = 1;
 if ((eval("x\u0009&=\u00091")) !== 1) {

test/language/expressions/compound-assignment/S11.13.2_A4.10_T1.1.js

@@ -9,6 +9,8 @@ description: >
     object
 ---*/
 
+var x;
+
 //CHECK#1
 x = true;
 x ^= true;

test/language/expressions/compound-assignment/S11.13.2_A4.10_T1.2.js

@@ -7,6 +7,8 @@ es5id: 11.13.2_A4.10_T1.2
 description: Type(x) and Type(y) vary between primitive number and Number object
 ---*/
 
+var x;
+
 //CHECK#1
 x = 1;
 x ^= 1;

test/language/expressions/compound-assignment/S11.13.2_A4.10_T1.3.js

@@ -7,6 +7,8 @@ es5id: 11.13.2_A4.10_T1.3
 description: Type(x) and Type(y) vary between primitive string and String object
 ---*/
 
+var x;
+
 //CHECK#1
 x = "1";
 x ^= "1";

test/language/expressions/compound-assignment/S11.13.2_A4.10_T1.4.js

@@ -7,6 +7,8 @@ es5id: 11.13.2_A4.10_T1.4
 description: Type(x) and Type(y) vary between Null and Undefined
 ---*/
 
+var x;
+
 //CHECK#1
 x = null;
 x ^= undefined;

test/language/expressions/compound-assignment/S11.13.2_A4.10_T2.1.js

@@ -9,6 +9,8 @@ description: >
     Number (primitive or object) and Boolean (primitive and object)
 ---*/
 
+var x;
+
 //CHECK#1
 x = true;
 x ^= 1;

test/language/expressions/compound-assignment/S11.13.2_A4.10_T2.2.js

@@ -9,6 +9,8 @@ description: >
     Number (primitive or object) and String (primitive and object)
 ---*/
 
+var x;
+
 //CHECK#1
 x = "1";
 x ^= 1;