Change type of CodeLensOptions.resolveProvider to Boolean (#534)

Fixes #533

Author: pisv

CHANGELOG.md

@@ -4,6 +4,10 @@
 
 Fixed issues: <https://github.com/eclipse/lsp4j/milestone/19?closed=1>
 
+Breaking API changes:
+
+ * Type of `CodeLensOptions.resolveProvider` changed from `boolean` to `Boolean`
+
 Breaking changes in behavior:
 
  * In case a type argument for `Either` is declared as `Object`,

org.eclipse.lsp4j/src/main/java/org/eclipse/lsp4j/Protocol.xtend

@@ -2275,12 +2275,12 @@ class CodeLensOptions extends AbstractWorkDoneProgressOptions {
 	/**
 	 * Code lens has a resolve provider as well.
 	 */
-	boolean resolveProvider
+	Boolean resolveProvider
 
 	new() {
 	}
 
-	new(boolean resolveProvider) {
+	new(Boolean resolveProvider) {
 		this.resolveProvider = resolveProvider
 	}
 }