fix(gui): use alias for types in tooltips (#1487)

jadx-gui/src/main/java/jadx/gui/treemodel/JNode.java

@@ -90,7 +90,7 @@ public abstract class JNode extends DefaultMutableTreeNode implements Comparable
 	}
 
 	public String getTooltip() {
-		return null;
+		return makeLongStringHtml();
 	}
 
 	private static final Comparator<JNode> COMPARATOR = Comparator

jadx-gui/src/main/java/jadx/gui/ui/codearea/MouseHoverHighlighter.java

@@ -83,6 +83,6 @@ class MouseHoverHighlighter extends MouseMotionAdapter {
 		}
 		JNodeCache nodeCache = codeArea.getMainWindow().getCacheObject().getNodeCache();
 		JNode jNode = nodeCache.makeFrom(node);
-		codeArea.setToolTipText(jNode.makeLongString());
+		codeArea.setToolTipText(jNode.getTooltip());
 	}
 }