partially suppress reachability errors in tests

tests/cases/compiler/commentsAtEndOfFile1.ts

@@ -1,3 +1,5 @@
+// @allowUnusedLabels: true
+
 Input:
 ;
 //Testing two

tests/cases/compiler/recursiveMods.ts

@@ -1,4 +1,6 @@
-//@module: commonjs
+// @allowUnreachableCode: true
+// @module: commonjs
+
 export module Foo {
 	export class C {}
 }

tests/cases/compiler/returnStatement1.ts

@@ -1,3 +1,5 @@
+// @allowUnreachableCode: true
+
 function f() {
     return function (s) {
         var x = s;

tests/cases/compiler/sourceMapValidationLabeled.ts

@@ -1,3 +1,5 @@
+// @allowUnusedLabels: true
 // @sourcemap: true
+
 x:
 var b = 10;

tests/cases/compiler/systemModule8.ts

@@ -1,3 +1,4 @@
+// @allowUnreachableCode: true
 // @module: system
 
 export var x;

tests/cases/conformance/expressions/unaryOperators/typeofOperator/typeofOperatorWithBooleanType.ts

@@ -1,3 +1,5 @@
+// @allowUnusedLabels: true
+
 // typeof  operator on boolean type
 var BOOLEAN: boolean;
 

tests/cases/conformance/expressions/unaryOperators/typeofOperator/typeofOperatorWithEnumType.ts

@@ -1,3 +1,5 @@
+// @allowUnusedLabels: true
+
 // typeof  operator on enum type
 
 enum ENUM { };

tests/cases/conformance/parser/ecmascript5/Statements/BreakStatements/parser_breakTarget3.ts

@@ -1,3 +1,5 @@
+// @allowUnusedLabels: true
+
 target1:
 target2:
 while (true) {

tests/cases/conformance/parser/ecmascript5/Statements/BreakStatements/parser_breakTarget4.ts

@@ -1,3 +1,5 @@
+// @allowUnusedLabels: true
+
 target1:
 target2:
 while (true) {

tests/cases/conformance/parser/ecmascript5/Statements/ContinueStatements/parser_continueTarget3.ts

@@ -1,3 +1,5 @@
+// @allowUnusedLabels: true
+
 target1:
 target2:
 while (true) {

tests/cases/conformance/parser/ecmascript5/Statements/ContinueStatements/parser_continueTarget4.ts

@@ -1,3 +1,5 @@
+// @allowUnusedLabels: true
+
 target1:
 target2:
 while (true) {

tests/cases/conformance/parser/ecmascript5/Statements/LabeledStatements/parser_duplicateLabel3.ts

@@ -1,3 +1,5 @@
+// @allowUnusedLabels: true
+
 target:
 while (true) {
   function f() {

tests/cases/conformance/parser/ecmascript5/Statements/LabeledStatements/parser_duplicateLabel4.ts

@@ -1,3 +1,6 @@
+// @allowUnusedLabels: true
+// @allowUnreachableCode: true
+
 target:
 while (true) {
 }

tests/cases/conformance/statements/breakStatements/switchBreakStatements.ts

@@ -1,3 +1,6 @@
+// @allowUnusedLabels: true
+// @allowUnreachableCode: true
+
 switch ('') {
     case 'a':
         break;

tests/cases/conformance/statements/throwStatements/throwInEnclosingStatements.ts

@@ -1,3 +1,5 @@
+// @allowUnreachableCode: true
+
 function fn(x) {
     throw x;
 }

tests/cases/conformance/statements/throwStatements/throwStatements.ts

@@ -1,3 +1,5 @@
+// @allowUnreachableCode: true
+
 // all legal
 
 interface I {