test binding values work with sourcemaps

test/sourcemaps/samples/binding-shorthand/input.html

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+<Widget bind:potato/>
+
+<script>
+	import Widget from 'wherever';
+
+	export default {
+		components: {
+			Widget
+		}
+	};
+</script>

test/sourcemaps/samples/binding-shorthand/test.js

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+export function test ({ assert, smc, locateInSource, locateInGenerated }) {
+	const expected = locateInSource( 'potato' );
+
+	let loc;
+	let actual;
+
+	loc = locateInGenerated( 'potato' );
+
+	actual = smc.originalPositionFor({
+		line: loc.line + 1,
+		column: loc.column
+	});
+
+	assert.deepEqual( actual, {
+		source: 'input.html',
+		name: null,
+		line: expected.line + 1,
+		column: expected.column
+	});
+
+	loc = locateInGenerated( 'potato', loc.character + 1 );
+
+	actual = smc.originalPositionFor({
+		line: loc.line + 1,
+		column: loc.column
+	});
+
+	assert.deepEqual( actual, {
+		source: 'input.html',
+		name: null,
+		line: expected.line + 1,
+		column: expected.column
+	});
+}

test/sourcemaps/samples/binding/input.html

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+<input bind:value='foo.bar.baz'>

test/sourcemaps/samples/binding/test.js

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+export function test ({ assert, smc, locateInSource, locateInGenerated }) {
+	const expected = locateInSource( 'foo.bar.baz' );
+
+	let loc;
+	let actual;
+
+	loc = locateInGenerated( 'foo.bar.baz' );
+
+	actual = smc.originalPositionFor({
+		line: loc.line + 1,
+		column: loc.column
+	});
+
+	assert.deepEqual( actual, {
+		source: 'input.html',
+		name: null,
+		line: expected.line + 1,
+		column: expected.column
+	});
+
+	loc = locateInGenerated( 'foo.bar.baz', loc.character + 1 );
+
+	actual = smc.originalPositionFor({
+		line: loc.line + 1,
+		column: loc.column
+	});
+
+	assert.deepEqual( actual, {
+		source: 'input.html',
+		name: null,
+		line: expected.line + 1,
+		column: expected.column
+	});
+}