Merge branch 'master' into exportDefaultType

Conflicts:
	src/compiler/checker.ts

tests/cases/compiler/letConstMatchingParameterNames.ts

@@ -0,0 +1,15 @@
+// @target: es5
+let parent = true;
+const parent2 = true;
+declare function use(a: any);
+
+function a() {
+    
+    let parent = 1;
+    const parent2 = 2;
+
+    function b(parent: string, parent2: number) {
+        use(parent);
+        use(parent2);
+    }
+}

tests/cases/compiler/letInNonStrictMode.ts

@@ -0,0 +1,2 @@
+let [x] = [1];
+let {a: y} = {a: 1};

tests/cases/compiler/shadowingViaLocalValueOrBindingElement.ts

@@ -0,0 +1,10 @@
+if (true) {
+    let x;
+    if (true) {
+        var x = 0; // Error
+        var { x = 0 } = { x: 0 }; // Error
+        var { x: x = 0 } = { x: 0 }; // Error
+        var { x } = { x: 0 }; // Error
+        var { x: x } = { x: 0 }; // Error
+    }
+}

tests/cases/fourslash/navbar_exportDefault.ts

@@ -0,0 +1,24 @@
+/// <reference path="fourslash.ts" />
+
+// @Filename: a.ts
+//// {| "itemName": "default", "kind": "class", "parentName": "" |}export default class { }
+
+// @Filename: b.ts
+//// {| "itemName": "C", "kind": "class", "parentName": "" |}export default class C { }
+
+// @Filename: c.ts
+//// {| "itemName": "default", "kind": "function", "parentName": "" |}export default function { }
+
+// @Filename: d.ts
+//// {| "itemName": "Func", "kind": "function", "parentName": "" |}export default function Func { }
+
+test.markers().forEach(marker => {
+    goTo.file(marker.fileName);
+    verify.getScriptLexicalStructureListContains(
+        marker.data.itemName,
+        marker.data.kind,
+        marker.fileName,
+        marker.data.parentName,
+        marker.data.isAdditionalRange,
+        marker.position);
+});