Add test cases for simple js file compilations

tests/baselines/reference/jsFileCompilationEmitDeclarations.js

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+//// [tests/cases/compiler/jsFileCompilationEmitDeclarations.ts] ////
+
+//// [a.ts]
+class c {
+}
+
+//// [b.js]
+function foo() {
+}
+
+
+//// [out.js]
+var c = (function () {
+    function c() {
+    }
+    return c;
+})();
+function foo() {
+}
+
+
+//// [out.d.ts]
+declare class c {
+}
+declare function foo(): void;

tests/baselines/reference/jsFileCompilationEmitDeclarations.symbols

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+=== tests/cases/compiler/a.ts ===
+class c {
+>c : Symbol(c, Decl(a.ts, 0, 0))
+}
+
+=== tests/cases/compiler/b.js ===
+function foo() {
+>foo : Symbol(foo, Decl(b.js, 0, 0))
+}
+

tests/baselines/reference/jsFileCompilationEmitDeclarations.types

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+=== tests/cases/compiler/a.ts ===
+class c {
+>c : c
+}
+
+=== tests/cases/compiler/b.js ===
+function foo() {
+>foo : () => void
+}
+

tests/baselines/reference/jsFileCompilationEmitTrippleSlashReference.js

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+//// [tests/cases/compiler/jsFileCompilationEmitTrippleSlashReference.ts] ////
+
+//// [a.ts]
+class c {
+}
+
+//// [b.js]
+/// <reference path="c.js"/>
+function foo() {
+}
+
+//// [c.js]
+function bar() {
+}
+
+//// [out.js]
+var c = (function () {
+    function c() {
+    }
+    return c;
+})();
+function bar() {
+}
+/// <reference path="c.js"/>
+function foo() {
+}
+
+
+//// [out.d.ts]
+declare class c {
+}
+declare function bar(): void;
+declare function foo(): void;

tests/baselines/reference/jsFileCompilationEmitTrippleSlashReference.symbols

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+=== tests/cases/compiler/a.ts ===
+class c {
+>c : Symbol(c, Decl(a.ts, 0, 0))
+}
+
+=== tests/cases/compiler/b.js ===
+/// <reference path="c.js"/>
+function foo() {
+>foo : Symbol(foo, Decl(b.js, 0, 0))
+}
+
+=== tests/cases/compiler/c.js ===
+function bar() {
+>bar : Symbol(bar, Decl(c.js, 0, 0))
+}

tests/baselines/reference/jsFileCompilationEmitTrippleSlashReference.types

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+=== tests/cases/compiler/a.ts ===
+class c {
+>c : c
+}
+
+=== tests/cases/compiler/b.js ===
+/// <reference path="c.js"/>
+function foo() {
+>foo : () => void
+}
+
+=== tests/cases/compiler/c.js ===
+function bar() {
+>bar : () => void
+}

tests/baselines/reference/jsFileCompilationWithOut.js

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+//// [tests/cases/compiler/jsFileCompilationWithOut.ts] ////
+
+//// [a.ts]
+class c {
+}
+
+//// [b.js]
+function foo() {
+}
+
+
+//// [out.js]
+var c = (function () {
+    function c() {
+    }
+    return c;
+})();
+function foo() {
+}

tests/baselines/reference/jsFileCompilationWithOut.symbols

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+=== tests/cases/compiler/a.ts ===
+class c {
+>c : Symbol(c, Decl(a.ts, 0, 0))
+}
+
+=== tests/cases/compiler/b.js ===
+function foo() {
+>foo : Symbol(foo, Decl(b.js, 0, 0))
+}
+

tests/baselines/reference/jsFileCompilationWithOut.types

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+=== tests/cases/compiler/a.ts ===
+class c {
+>c : c
+}
+
+=== tests/cases/compiler/b.js ===
+function foo() {
+>foo : () => void
+}
+

tests/baselines/reference/jsFileCompilationWithoutOut.errors.txt

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+error TS5054: Could not write file 'tests/cases/compiler/b.js' which is one of the input files.
+
+
+!!! error TS5054: Could not write file 'tests/cases/compiler/b.js' which is one of the input files.
+==== tests/cases/compiler/a.ts (0 errors) ====
+    class c {
+    }
+    
+==== tests/cases/compiler/b.js (0 errors) ====
+    function foo() {
+    }
+    

tests/baselines/reference/jsFileCompilationWithoutOut.js

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+//// [tests/cases/compiler/jsFileCompilationWithoutOut.ts] ////
+
+//// [a.ts]
+class c {
+}
+
+//// [b.js]
+function foo() {
+}
+
+
+//// [a.js]
+var c = (function () {
+    function c() {
+    }
+    return c;
+})();