diff --git a/README.md b/README.md
index fecd6c7..37800e0 100644
--- a/README.md
+++ b/README.md
@@ -180,7 +180,7 @@ Example:
  - [VS Code PHP IntelliSense](https://github.com/felixfbecker/vscode-php-intellisense)
  - [Eclipse Che](https://eclipse.org/che/)
  - [Eclipse IDE (LSP4E-PHP)](https://github.com/eclipselabs/lsp4e-php)
- - [Neovim (nvim-cm-php-language-server)](https://github.com/roxma/nvim-cm-php-language-server)
+ - NeoVim: [LanguageServer-php-neovim](https://github.com/roxma/LanguageServer-php-neovim) with [LanguageClient neovim](https://github.com/autozimu/LanguageClient-neovim)
 
 ## Contributing
 
diff --git a/composer.json b/composer.json
index 6e8ae66..1f23bca 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
         "phpdocumentor/reflection-docblock": "^3.0",
         "sabre/event": "^5.0",
         "felixfbecker/advanced-json-rpc": "^2.0",
-        "squizlabs/php_codesniffer" : "^3.0",
+        "squizlabs/php_codesniffer" : "3.0.0RC3",
         "netresearch/jsonmapper": "^1.0",
         "webmozart/path-util": "^2.3",
         "webmozart/glob": "^4.1",
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 4e3f6be..6cd8787 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -11,4 +11,7 @@
             <directory>./src</directory>
         </whitelist>
     </filter>
+    <php>
+        <ini name="memory_limit" value="256M"/>
+    </php>
 </phpunit>
diff --git a/src/DefinitionResolver.php b/src/DefinitionResolver.php
index ec295a5..7307de9 100644
--- a/src/DefinitionResolver.php
+++ b/src/DefinitionResolver.php
@@ -89,7 +89,14 @@ class DefinitionResolver
         } else {
             $docBlock = $node->getAttribute('docBlock');
             if ($docBlock !== null) {
-                return $docBlock->getSummary();
+                // check wether we have a description, when true, add a new paragraph
+                // with the description
+                $description = $docBlock->getDescription()->render();
+
+                if (empty($description)) {
+                    return $docBlock->getSummary();
+                }
+                return $docBlock->getSummary() . "\n\n" . $description;
             }
         }
     }
@@ -439,7 +446,7 @@ class DefinitionResolver
                 // Cannot get type for dynamic function call
                 return new Types\Mixed;
             }
-            $fqn = (string)($expr->getAttribute('namespacedName') ?? $expr->name);
+            $fqn = (string)($expr->getAttribute('namespacedName') ?? $expr->name) . '()';
             $def = $this->index->getDefinition($fqn, true);
             if ($def !== null) {
                 return $def->type;
diff --git a/src/LanguageServer.php b/src/LanguageServer.php
index 3c999f2..8fe9ec1 100644
--- a/src/LanguageServer.php
+++ b/src/LanguageServer.php
@@ -253,6 +253,7 @@ class LanguageServer extends AdvancedJsonRpc\Dispatcher
             }
             if ($this->workspace === null) {
                 $this->workspace = new Server\Workspace(
+                    $this->client,
                     $this->projectIndex,
                     $dependenciesIndex,
                     $sourceIndex,
diff --git a/src/Protocol/FileEvent.php b/src/Protocol/FileEvent.php
index b4ed833..015044d 100644
--- a/src/Protocol/FileEvent.php
+++ b/src/Protocol/FileEvent.php
@@ -20,4 +20,14 @@ class FileEvent
      * @var int
      */
     public $type;
+
+    /**
+     * @param string $uri
+     * @param int $type
+     */
+    public function __construct(string $uri, int $type)
+    {
+        $this->uri = $uri;
+        $this->type = $type;
+    }
 }
diff --git a/src/Server/Workspace.php b/src/Server/Workspace.php
index b94618c..d2f8cec 100644
--- a/src/Server/Workspace.php
+++ b/src/Server/Workspace.php
@@ -5,7 +5,15 @@ namespace LanguageServer\Server;
 
 use LanguageServer\{LanguageClient, Project, PhpDocumentLoader};
 use LanguageServer\Index\{ProjectIndex, DependenciesIndex, Index};
-use LanguageServer\Protocol\{SymbolInformation, SymbolDescriptor, ReferenceInformation, DependencyReference, Location};
+use LanguageServer\Protocol\{
+    FileChangeType,
+    FileEvent,
+    SymbolInformation,
+    SymbolDescriptor,
+    ReferenceInformation,
+    DependencyReference,
+    Location
+};
 use Sabre\Event\Promise;
 use function Sabre\Event\coroutine;
 use function LanguageServer\{waitForEvent, getPackageName};
@@ -15,6 +23,11 @@ use function LanguageServer\{waitForEvent, getPackageName};
  */
 class Workspace
 {
+    /**
+     * @var LanguageClient
+     */
+    public $client;
+
     /**
      * The symbol index for the workspace
      *
@@ -43,14 +56,16 @@ class Workspace
     public $documentLoader;
 
     /**
+     * @param LanguageClient    $client            LanguageClient instance used to signal updated results
      * @param ProjectIndex      $index             Index that is searched on a workspace/symbol request
      * @param DependenciesIndex $dependenciesIndex Index that is used on a workspace/xreferences request
      * @param DependenciesIndex $sourceIndex       Index that is used on a workspace/xreferences request
      * @param \stdClass         $composerLock      The parsed composer.lock of the project, if any
      * @param PhpDocumentLoader $documentLoader    PhpDocumentLoader instance to load documents
      */
-    public function __construct(ProjectIndex $index, DependenciesIndex $dependenciesIndex, Index $sourceIndex, \stdClass $composerLock = null, PhpDocumentLoader $documentLoader, \stdClass $composerJson = null)
+    public function __construct(LanguageClient $client, ProjectIndex $index, DependenciesIndex $dependenciesIndex, Index $sourceIndex, \stdClass $composerLock = null, PhpDocumentLoader $documentLoader, \stdClass $composerJson = null)
     {
+        $this->client = $client;
         $this->sourceIndex = $sourceIndex;
         $this->index = $index;
         $this->dependenciesIndex = $dependenciesIndex;
@@ -82,6 +97,21 @@ class Workspace
         });
     }
 
+    /**
+     * The watched files notification is sent from the client to the server when the client detects changes to files watched by the language client.
+     *
+     * @param FileEvent[] $changes
+     * @return void
+     */
+    public function didChangeWatchedFiles(array $changes)
+    {
+        foreach ($changes as $change) {
+            if ($change->type === FileChangeType::DELETED) {
+                $this->client->textDocument->publishDiagnostics($change->uri, []);
+            }
+        }
+    }
+
     /**
      * The workspace references request is sent from the client to the server to locate project-wide references to a symbol given its description / metadata.
      *
diff --git a/tests/Server/ServerTestCase.php b/tests/Server/ServerTestCase.php
index 679191f..94ba933 100644
--- a/tests/Server/ServerTestCase.php
+++ b/tests/Server/ServerTestCase.php
@@ -54,7 +54,7 @@ abstract class ServerTestCase extends TestCase
         $client               = new LanguageClient(new MockProtocolStream, new MockProtocolStream);
         $this->documentLoader = new PhpDocumentLoader(new FileSystemContentRetriever, $projectIndex, $definitionResolver);
         $this->textDocument   = new Server\TextDocument($this->documentLoader, $definitionResolver, $client, $projectIndex);
-        $this->workspace      = new Server\Workspace($projectIndex, $dependenciesIndex, $sourceIndex, null, $this->documentLoader);
+        $this->workspace      = new Server\Workspace($client, $projectIndex, $dependenciesIndex, $sourceIndex, null, $this->documentLoader);
 
         $globalSymbolsUri    = pathToUri(realpath(__DIR__ . '/../../fixtures/global_symbols.php'));
         $globalReferencesUri = pathToUri(realpath(__DIR__ . '/../../fixtures/global_references.php'));
diff --git a/tests/Server/TextDocument/CompletionTest.php b/tests/Server/TextDocument/CompletionTest.php
index dd9e680..786fb55 100644
--- a/tests/Server/TextDocument/CompletionTest.php
+++ b/tests/Server/TextDocument/CompletionTest.php
@@ -160,7 +160,12 @@ class CompletionTest extends TestCase
                 'TestClass',
                 CompletionItemKind::CLASS_,
                 null,
-                'Pariatur ut laborum tempor voluptate consequat ea deserunt.',
+                'Pariatur ut laborum tempor voluptate consequat ea deserunt.' . "\n\n" .
+                'Deserunt enim minim sunt sint ea nisi. Deserunt excepteur tempor id nostrud' . "\n" .
+                'laboris commodo ad commodo velit mollit qui non officia id. Nulla duis veniam' . "\n" .
+                'veniam officia deserunt et non dolore mollit ea quis eiusmod sit non. Occaecat' . "\n" .
+                'consequat sunt culpa exercitation pariatur id reprehenderit nisi incididunt Lorem' . "\n" .
+                'sint. Officia culpa pariatur laborum nostrud cupidatat consequat mollit.',
                 null,
                 null,
                 '\TestClass'
@@ -179,7 +184,12 @@ class CompletionTest extends TestCase
                 'TestClass',
                 CompletionItemKind::CLASS_,
                 'TestNamespace',
-                'Pariatur ut laborum tempor voluptate consequat ea deserunt.',
+                'Pariatur ut laborum tempor voluptate consequat ea deserunt.' . "\n\n" .
+                'Deserunt enim minim sunt sint ea nisi. Deserunt excepteur tempor id nostrud' . "\n" .
+                'laboris commodo ad commodo velit mollit qui non officia id. Nulla duis veniam' . "\n" .
+                'veniam officia deserunt et non dolore mollit ea quis eiusmod sit non. Occaecat' . "\n" .
+                'consequat sunt culpa exercitation pariatur id reprehenderit nisi incididunt Lorem' . "\n" .
+                'sint. Officia culpa pariatur laborum nostrud cupidatat consequat mollit.',
                 null,
                 null,
                 'TestClass'
@@ -209,7 +219,12 @@ class CompletionTest extends TestCase
                 'TestClass',
                 CompletionItemKind::CLASS_,
                 'TestNamespace',
-                'Pariatur ut laborum tempor voluptate consequat ea deserunt.'
+                'Pariatur ut laborum tempor voluptate consequat ea deserunt.' . "\n\n" .
+                'Deserunt enim minim sunt sint ea nisi. Deserunt excepteur tempor id nostrud' . "\n" .
+                'laboris commodo ad commodo velit mollit qui non officia id. Nulla duis veniam' . "\n" .
+                'veniam officia deserunt et non dolore mollit ea quis eiusmod sit non. Occaecat' . "\n" .
+                'consequat sunt culpa exercitation pariatur id reprehenderit nisi incididunt Lorem' . "\n" .
+                'sint. Officia culpa pariatur laborum nostrud cupidatat consequat mollit.'
             )
         ], true), $items);
     }
@@ -347,7 +362,12 @@ class CompletionTest extends TestCase
                 'TestClass',
                 CompletionItemKind::CLASS_,
                 null,
-                'Pariatur ut laborum tempor voluptate consequat ea deserunt.',
+                'Pariatur ut laborum tempor voluptate consequat ea deserunt.' . "\n\n" .
+                'Deserunt enim minim sunt sint ea nisi. Deserunt excepteur tempor id nostrud' . "\n" .
+                'laboris commodo ad commodo velit mollit qui non officia id. Nulla duis veniam' . "\n" .
+                'veniam officia deserunt et non dolore mollit ea quis eiusmod sit non. Occaecat' . "\n" .
+                'consequat sunt culpa exercitation pariatur id reprehenderit nisi incididunt Lorem' . "\n" .
+                'sint. Officia culpa pariatur laborum nostrud cupidatat consequat mollit.',
                 null,
                 null,
                 'TestClass'
diff --git a/tests/Server/TextDocument/HoverTest.php b/tests/Server/TextDocument/HoverTest.php
index 7d61354..cdc1718 100644
--- a/tests/Server/TextDocument/HoverTest.php
+++ b/tests/Server/TextDocument/HoverTest.php
@@ -22,7 +22,12 @@ class HoverTest extends ServerTestCase
         )->wait();
         $this->assertEquals(new Hover([
             new MarkedString('php', "<?php\nclass TestClass implements \\TestInterface"),
-            'Pariatur ut laborum tempor voluptate consequat ea deserunt.'
+            'Pariatur ut laborum tempor voluptate consequat ea deserunt.' . "\n\n" .
+            'Deserunt enim minim sunt sint ea nisi. Deserunt excepteur tempor id nostrud' . "\n" .
+            'laboris commodo ad commodo velit mollit qui non officia id. Nulla duis veniam' . "\n" .
+            'veniam officia deserunt et non dolore mollit ea quis eiusmod sit non. Occaecat' . "\n" .
+            'consequat sunt culpa exercitation pariatur id reprehenderit nisi incididunt Lorem' . "\n" .
+            'sint. Officia culpa pariatur laborum nostrud cupidatat consequat mollit.'
         ], $reference->range), $result);
     }
 
@@ -37,7 +42,12 @@ class HoverTest extends ServerTestCase
         )->wait();
         $this->assertEquals(new Hover([
             new MarkedString('php', "<?php\nclass TestClass implements \\TestInterface"),
-            'Pariatur ut laborum tempor voluptate consequat ea deserunt.'
+            'Pariatur ut laborum tempor voluptate consequat ea deserunt.' . "\n\n" .
+            'Deserunt enim minim sunt sint ea nisi. Deserunt excepteur tempor id nostrud' . "\n" .
+            'laboris commodo ad commodo velit mollit qui non officia id. Nulla duis veniam' . "\n" .
+            'veniam officia deserunt et non dolore mollit ea quis eiusmod sit non. Occaecat' . "\n" .
+            'consequat sunt culpa exercitation pariatur id reprehenderit nisi incididunt Lorem' . "\n" .
+            'sint. Officia culpa pariatur laborum nostrud cupidatat consequat mollit.'
         ], $definition->range), $result);
     }
 
@@ -181,7 +191,12 @@ class HoverTest extends ServerTestCase
         $result = $this->textDocument->hover(new TextDocumentIdentifier($uri), new Position(59, 11))->wait();
         $this->assertEquals(new Hover([
             new MarkedString('php', "<?php\nclass TestClass implements \\TestInterface"),
-            'Pariatur ut laborum tempor voluptate consequat ea deserunt.'
+            'Pariatur ut laborum tempor voluptate consequat ea deserunt.' . "\n\n" .
+            'Deserunt enim minim sunt sint ea nisi. Deserunt excepteur tempor id nostrud' . "\n" .
+            'laboris commodo ad commodo velit mollit qui non officia id. Nulla duis veniam' . "\n" .
+            'veniam officia deserunt et non dolore mollit ea quis eiusmod sit non. Occaecat' . "\n" .
+            'consequat sunt culpa exercitation pariatur id reprehenderit nisi incididunt Lorem' . "\n" .
+            'sint. Officia culpa pariatur laborum nostrud cupidatat consequat mollit.'
         ], new Range(new Position(59, 8), new Position(59, 13))), $result);
     }
 }
diff --git a/tests/Server/Workspace/DidChangeWatchedFilesTest.php b/tests/Server/Workspace/DidChangeWatchedFilesTest.php
new file mode 100644
index 0000000..1074c58
--- /dev/null
+++ b/tests/Server/Workspace/DidChangeWatchedFilesTest.php
@@ -0,0 +1,41 @@
+<?php
+declare(strict_types = 1);
+
+namespace LanguageServer\Tests\Server\Workspace;
+
+use LanguageServer\ContentRetriever\FileSystemContentRetriever;
+use LanguageServer\{DefinitionResolver, LanguageClient, PhpDocumentLoader, Server};
+use LanguageServer\Index\{DependenciesIndex, Index, ProjectIndex};
+use LanguageServer\Protocol\{FileChangeType, FileEvent, Message};
+use LanguageServer\Tests\MockProtocolStream;
+use LanguageServer\Tests\Server\ServerTestCase;
+use LanguageServer\Server\Workspace;
+use Sabre\Event\Loop;
+
+class DidChangeWatchedFilesTest extends ServerTestCase
+{
+    public function testDeletingFileClearsAllDiagnostics()
+    {
+        $client = new LanguageClient(new MockProtocolStream(), $writer = new MockProtocolStream());
+        $projectIndex = new ProjectIndex($sourceIndex = new Index(), $dependenciesIndex = new DependenciesIndex());
+        $definitionResolver = new DefinitionResolver($projectIndex);
+        $loader = new PhpDocumentLoader(new FileSystemContentRetriever(), $projectIndex, $definitionResolver);
+        $workspace = new Server\Workspace($client, $projectIndex, $dependenciesIndex, $sourceIndex, null, $loader, null);
+
+        $fileEvent = new FileEvent('my uri', FileChangeType::DELETED);
+
+        $isDiagnosticsCleared = false;
+        $writer->on('message', function (Message $message) use ($fileEvent, &$isDiagnosticsCleared) {
+            if ($message->body->method === "textDocument/publishDiagnostics") {
+                $this->assertEquals($message->body->params->uri, $fileEvent->uri);
+                $this->assertEquals($message->body->params->diagnostics, []);
+                $isDiagnosticsCleared = true;
+            }
+        });
+
+        $workspace->didChangeWatchedFiles([$fileEvent]);
+        Loop\tick(true);
+
+        $this->assertTrue($isDiagnosticsCleared, "Deleting file should clear all diagnostics.");
+    }
+}