Cherry-pick PR microsoft#48765 into release-4.6

Component commits:
1b9a9d8 Fix transformed constructor code when there is code between prologue statements and super call

src/compiler/transformers/es2015.ts

@@ -1146,7 +1146,7 @@ namespace ts {
                         [
                             ...existingPrologue,
                             ...prologue,
-                            ...(superStatementIndex <= existingPrologue.length ? emptyArray : visitNodes(constructor.body.statements, visitor, isStatement, existingPrologue.length, superStatementIndex)),
+                            ...(superStatementIndex <= existingPrologue.length ? emptyArray : visitNodes(constructor.body.statements, visitor, isStatement, existingPrologue.length, superStatementIndex - existingPrologue.length)),
                             ...statements
                         ]
                     ),

tests/baselines/reference/constructorWithSuperAndPrologue.es5.js

@@ -0,0 +1,52 @@
+//// [constructorWithSuperAndPrologue.es5.ts]
+// https://github.com/microsoft/TypeScript/issues/48761
+"use strict";
+
+class A {
+    public constructor() {
+        console.log("A")
+    }
+}
+
+class B extends A  {
+    constructor() {
+        "ngInject";
+        console.log("B")
+        super();
+    }
+}
+
+
+//// [constructorWithSuperAndPrologue.es5.js]
+// https://github.com/microsoft/TypeScript/issues/48761
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+var A = /** @class */ (function () {
+    function A() {
+        console.log("A");
+    }
+    return A;
+}());
+var B = /** @class */ (function (_super) {
+    __extends(B, _super);
+    function B() {
+        "ngInject";
+        console.log("B");
+        return _super.call(this) || this;
+    }
+    return B;
+}(A));

tests/baselines/reference/constructorWithSuperAndPrologue.es5.symbols

@@ -0,0 +1,31 @@
+=== tests/cases/compiler/constructorWithSuperAndPrologue.es5.ts ===
+// https://github.com/microsoft/TypeScript/issues/48761
+"use strict";
+
+class A {
+>A : Symbol(A, Decl(constructorWithSuperAndPrologue.es5.ts, 1, 13))
+
+    public constructor() {
+        console.log("A")
+>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
+>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
+>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
+    }
+}
+
+class B extends A  {
+>B : Symbol(B, Decl(constructorWithSuperAndPrologue.es5.ts, 7, 1))
+>A : Symbol(A, Decl(constructorWithSuperAndPrologue.es5.ts, 1, 13))
+
+    constructor() {
+        "ngInject";
+        console.log("B")
+>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
+>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
+>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
+
+        super();
+>super : Symbol(A, Decl(constructorWithSuperAndPrologue.es5.ts, 1, 13))
+    }
+}
+

tests/baselines/reference/constructorWithSuperAndPrologue.es5.types

@@ -0,0 +1,39 @@
+=== tests/cases/compiler/constructorWithSuperAndPrologue.es5.ts ===
+// https://github.com/microsoft/TypeScript/issues/48761
+"use strict";
+>"use strict" : "use strict"
+
+class A {
+>A : A
+
+    public constructor() {
+        console.log("A")
+>console.log("A") : void
+>console.log : (...data: any[]) => void
+>console : Console
+>log : (...data: any[]) => void
+>"A" : "A"
+    }
+}
+
+class B extends A  {
+>B : B
+>A : A
+
+    constructor() {
+        "ngInject";
+>"ngInject" : "ngInject"
+
+        console.log("B")
+>console.log("B") : void
+>console.log : (...data: any[]) => void
+>console : Console
+>log : (...data: any[]) => void
+>"B" : "B"
+
+        super();
+>super() : void
+>super : typeof A
+    }
+}
+

tests/cases/compiler/constructorWithSuperAndPrologue.es5.ts

@@ -0,0 +1,17 @@
+// @target: es5
+// https://github.com/microsoft/TypeScript/issues/48761
+"use strict";
+
+class A {
+    public constructor() {
+        console.log("A")
+    }
+}
+
+class B extends A  {
+    constructor() {
+        "ngInject";
+        console.log("B")
+        super();
+    }
+}