add tests for some.global = "changed"

test/form/unused-side-effect/_config.js

@@ -0,0 +1,3 @@
+module.exports = {
+	description: 'side-effects to non-globals are not blindly included'
+};

test/form/unused-side-effect/_expected/amd.js

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+define(function () { 'use strict';
+
+	var foo = 42;
+
+	assert.equal( foo, 42 );
+
+});

test/form/unused-side-effect/_expected/cjs.js

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+'use strict';
+
+var foo = 42;
+
+assert.equal( foo, 42 );

test/form/unused-side-effect/_expected/es6.js

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+var foo = 42;
+
+assert.equal( foo, 42 );

test/form/unused-side-effect/_expected/iife.js

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+(function () { 'use strict';
+
+	var foo = 42;
+
+	assert.equal( foo, 42 );
+
+})();

test/form/unused-side-effect/_expected/umd.js

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+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	factory();
+}(this, function () { 'use strict';
+
+	var foo = 42;
+
+	assert.equal( foo, 42 );
+
+}));

test/form/unused-side-effect/foo.js

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+var uid = 0;
+uid = 1;
+uid += 1;
+uid++;
+
+export var foo = 42;

test/form/unused-side-effect/main.js

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+import { foo } from './foo';
+assert.equal( foo, 42 );

test/function/modify-assumed-global/_config.js

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+var assert = require( 'assert' );
+
+var Math = {};
+
+module.exports = {
+	description: 'side-effects to assumed globals are included',
+	context: {
+		Math: Math
+	},
+	exports: function ( exports ) {
+		assert.equal( Math.square( 3 ), 9 );
+		assert.equal( Math.cube( 3 ), 27 );
+	}
+};

test/function/modify-assumed-global/main.js

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+import { square } from './math';
+
+assert.equal( square( 2 ), 4 );

test/function/modify-assumed-global/math.js

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+function square ( x ) {
+	return x * x;
+}
+
+function cube ( x ) {
+	return x * x * x;
+}
+
+Math.square = square;
+
+if ( true ) {
+	Math.cube = cube;
+}
+
+export { square };