GH-2438 B: As a developer I want to use d.ts react definitions (inste…

…ad of n4jsd react definitions) (#2452)

* special handling for d.ts Readonly<Z> types delegates to Z

* support @types/react elements

* also index d.ts that have errors

* add some more tests

* better support for react exotic component

* better cache for declaration merging info

* support declaration merging for type hierarchy

* add test case

* two more tests and fixes

* fix NPE

* add test, rename tests

* fix another dts import bug

* support relative imports between d.ts files, add test

* support optional return type ref, and relative import specifiers

* minor changes and fixes

* add two tests

* fix test

* down to 1800 errors in OPR again

* support 'typings' in package.json

* fix unintended merging

* improve test expectation

* add test for inheritance of merged elements

* major refactoring of hierarchy traverser to support merged types

* fix test

* fix test

* small adjustments on React test definitions

* fix performance issue with more caching

* improve error message

* some changes

* update react defs for testing

* improve type ref handling for utility and conditional types

* typo

* add tests

* support TypeScript's typeof and infer

* adjust test

* revert/disable some changes wrt using type defs of react.d.ts

* fix libs

* small optimization

* some fixes

* update node version

* small fix in d.ts grammar and transformation

* improve TypeHierarchyTraverser

* improve N4JSCache

* add comment

* organize imports

* java doc

* small fix

* small performance improvement

* add test

* typo

* bump version due to some improved type checks causing incompatibilities

n4js-libs/packages/n4js-mangelhaft-cli/src/n4js/org/eclipse/n4js/mangelhaft/runner/node/NodeTestRunner.n4js

@@ -136,7 +136,7 @@ class NodeTestRunner  {
             const coverageMap = lib_coverage.createCoverageMap(coverage);
             mkdirp(lib_path.dirname(nycCoveragePath));
             log("Writing %s", nycCoveragePath);
-            lib_fs.writeFileSync(nycCoveragePath, JSON.stringify(coverageMap, null, 2), { encoding: "UTF-8" });
+            lib_fs.writeFileSync(nycCoveragePath, JSON.stringify(coverageMap, null, 2), { BufferEncoding encoding: "utf-8" });
 
             const coverageSummary = lib_coverage.createCoverageSummary();
             for (const file of coverageMap.files()) {

n4js-libs/packages/org.eclipse.n4js.mangelhaft/src/n4js/org/eclipse/n4js/mangelhaft/util/fs.n4js

@@ -53,5 +53,5 @@ export public function readJsonFile(path: string): Object+ {
 export public function outputTextFile(filePath: string, content: string): void {
     const dir = lib_path.dirname(filePath);
     mkdirp(dir);
-    writeFileSync(filePath, content, { encoding: "UTF-8" });
+    writeFileSync(filePath, content, { BufferEncoding encoding: "utf-8" });
 }

plugins/org.eclipse.n4js.dts/grammar/TypeScriptParser.g4

@@ -215,7 +215,7 @@ thisTypeRef
     ;
 
 queryTypeRef
-    : 'typeof' propertyAccessExpressionInTypeRef
+    : 'typeof' (importTypeRef | propertyAccessExpressionInTypeRef)
 ;
 
 importTypeRef