Merge changes I1109347f,I16f79dd6 * changes: Fix a weird layering issue with check action tooltips Remove '- filtered' text from check result section title

diff --git a/polygerrit-ui/app/elements/checks/gr-checks-action.ts b/polygerrit-ui/app/elements/checks/gr-checks-action.ts
index 82680aa..9fe86c8 100644
--- a/polygerrit-ui/app/elements/checks/gr-checks-action.ts
+++ b/polygerrit-ui/app/elements/checks/gr-checks-action.ts

@@ -41,6 +41,13 @@
           display: inline-block;
         }
         gr-button {
+          /* It is not fully understood why this is needed, but otherwise the
+             paper-tooltip may render under some iron-icons of the content
+             below. Maybe this has to do with a z-index:0 setting for
+             paper-button, such that a stacking context is created. And the high
+             z-index of the paper-tooltip will then only be interpreted within
+             that stacking context. */
+          z-index: 1;
           --padding: var(--spacing-s) var(--spacing-m);
         }
         gr-button paper-tooltip {

diff --git a/polygerrit-ui/app/elements/checks/gr-checks-results.ts b/polygerrit-ui/app/elements/checks/gr-checks-results.ts
index 49bfbc2..b11b6d0 100644
--- a/polygerrit-ui/app/elements/checks/gr-checks-results.ts
+++ b/polygerrit-ui/app/elements/checks/gr-checks-results.ts

@@ -1190,9 +1190,7 @@
               class="statusIcon ${catString}"
             ></iron-icon>
             <span class="title">${catString}</span>
-            <span class="count"
-              >${this.renderCount(all, selected, filtered)}</span
-            >
+            <span class="count">${this.renderCount(all, filtered)}</span>
             <paper-tooltip offset="5"
               >${CATEGORY_TOOLTIPS.get(category)}</paper-tooltip
             >
@@ -1282,13 +1280,10 @@
     `;
   }
 
-  renderCount(all: RunResult[], selected: RunResult[], filtered: RunResult[]) {
+  renderCount(all: RunResult[], filtered: RunResult[]) {
     if (all.length === filtered.length) {
       return html`(${all.length})`;
     }
-    if (all.length !== selected.length) {
-      return html`<span class="filtered"> - filtered</span>`;
-    }
     return html`(${filtered.length} of ${all.length})`;
   }