tools: update ESLint to v3.8.0

Update ESLint to v3.8.0.

* Installed with `npm install --production` to avoid installing
  unnecessary dev files
* Used `dmn -f clean` to further eliminate unneeded files

PR-URL: https://github.com/nodejs/node/pull/9112
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>

5 files changed, 27 insertions, 27 deletions

diff --git a/tools/eslint/lib/code-path-analysis/code-path-analyzer.js b/tools/eslint/lib/code-path-analysis/code-path-analyzer.js
index 1d3b632c62..655211430b 100644
--- a/tools/eslint/lib/code-path-analysis/code-path-analyzer.js
+++ b/tools/eslint/lib/code-path-analysis/code-path-analyzer.js
@@ -148,7 +148,7 @@ function forwardCurrentToHead(analyzer, node) {
         headSegment = headSegments[i];
 
         if (currentSegment !== headSegment && currentSegment) {
-            debug.dump("onCodePathSegmentEnd " + currentSegment.id);
+            debug.dump(`onCodePathSegmentEnd ${currentSegment.id}`);
 
             if (currentSegment.reachable) {
                 analyzer.emitter.emit(
@@ -168,7 +168,7 @@ function forwardCurrentToHead(analyzer, node) {
         headSegment = headSegments[i];
 
         if (currentSegment !== headSegment && headSegment) {
-            debug.dump("onCodePathSegmentStart " + headSegment.id);
+            debug.dump(`onCodePathSegmentStart ${headSegment.id}`);
 
             CodePathSegment.markUsed(headSegment);
             if (headSegment.reachable) {
@@ -197,7 +197,7 @@ function leaveFromCurrentSegment(analyzer, node) {
     for (let i = 0; i < currentSegments.length; ++i) {
         const currentSegment = currentSegments[i];
 
-        debug.dump("onCodePathSegmentEnd " + currentSegment.id);
+        debug.dump(`onCodePathSegmentEnd ${currentSegment.id}`);
         if (currentSegment.reachable) {
             analyzer.emitter.emit(
                 "onCodePathSegmentEnd",
@@ -353,7 +353,7 @@ function processCodePathToEnter(analyzer, node) {
             state = CodePath.getState(codePath);
 
             // Emits onCodePathStart events.
-            debug.dump("onCodePathStart " + codePath.id);
+            debug.dump(`onCodePathStart ${codePath.id}`);
             analyzer.emitter.emit("onCodePathStart", codePath, node);
             break;
 
@@ -546,7 +546,7 @@ function postprocess(analyzer, node) {
             leaveFromCurrentSegment(analyzer, node);
 
             // Emits onCodePathEnd event of this code path.
-            debug.dump("onCodePathEnd " + codePath.id);
+            debug.dump(`onCodePathEnd ${codePath.id}`);
             analyzer.emitter.emit("onCodePathEnd", codePath, node);
             debug.dumpDot(codePath);
 
@@ -643,7 +643,7 @@ CodePathAnalyzer.prototype = {
      */
     onLooped(fromSegment, toSegment) {
         if (fromSegment.reachable && toSegment.reachable) {
-            debug.dump("onCodePathSegmentLoop " + fromSegment.id + " -> " + toSegment.id);
+            debug.dump(`onCodePathSegmentLoop ${fromSegment.id} -> ${toSegment.id}`);
             this.emitter.emit(
                 "onCodePathSegmentLoop",
                 fromSegment,
diff --git a/tools/eslint/lib/code-path-analysis/code-path-state.js b/tools/eslint/lib/code-path-analysis/code-path-state.js
index 392e3898f6..3b0b1606e2 100644
--- a/tools/eslint/lib/code-path-analysis/code-path-state.js
+++ b/tools/eslint/lib/code-path-analysis/code-path-state.js
@@ -967,7 +967,7 @@ CodePathState.prototype = {
 
             /* istanbul ignore next */
             default:
-                throw new Error("unknown type: \"" + type + "\"");
+                throw new Error(`unknown type: "${type}"`);
         }
     },
 
diff --git a/tools/eslint/lib/code-path-analysis/code-path.js b/tools/eslint/lib/code-path-analysis/code-path.js
index 1e7b76e5ab..96363423c2 100644
--- a/tools/eslint/lib/code-path-analysis/code-path.js
+++ b/tools/eslint/lib/code-path-analysis/code-path.js
@@ -49,7 +49,7 @@ function CodePath(id, upper, onLooped) {
     Object.defineProperty(
         this,
         "internal",
-        {value: new CodePathState(new IdGenerator(id + "_"), onLooped)});
+        {value: new CodePathState(new IdGenerator(`${id}_`), onLooped)});
 
     // Adds this into `childCodePaths` of `upper`.
     if (upper) {
diff --git a/tools/eslint/lib/code-path-analysis/debug-helpers.js b/tools/eslint/lib/code-path-analysis/debug-helpers.js
index ac163268b6..5e311eb352 100644
--- a/tools/eslint/lib/code-path-analysis/debug-helpers.js
+++ b/tools/eslint/lib/code-path-analysis/debug-helpers.js
@@ -64,10 +64,10 @@ module.exports = {
             }
         }
 
-        debug(
-            state.currentSegments.map(getId).join(",") + ") " +
-            node.type + (leaving ? ":exit" : "")
-        );
+        debug([
+            `${state.currentSegments.map(getId).join(",")})`,
+            `${node.type}${leaving ? ":exit" : ""}`
+        ].join(" "));
     },
 
     /**
@@ -99,7 +99,7 @@ module.exports = {
         for (const id in traceMap) { // eslint-disable-line guard-for-in
             const segment = traceMap[id];
 
-            text += id + "[";
+            text += `${id}[`;
 
             if (segment.reachable) {
                 text += "label=\"";
@@ -110,17 +110,17 @@ module.exports = {
             if (segment.internal.nodes.length > 0) {
                 text += segment.internal.nodes.map(function(node) {
                     switch (node.type) {
-                        case "Identifier": return node.type + " (" + node.name + ")";
-                        case "Literal": return node.type + " (" + node.value + ")";
+                        case "Identifier": return `${node.type} (${node.name})`;
+                        case "Literal": return `${node.type} (${node.value})`;
                         default: return node.type;
                     }
                 }).join("\\n");
             } else if (segment.internal.exitNodes.length > 0) {
                 text += segment.internal.exitNodes.map(function(node) {
                     switch (node.type) {
-                        case "Identifier": return node.type + ":exit (" + node.name + ")";
-                        case "Literal": return node.type + ":exit (" + node.value + ")";
-                        default: return node.type + ":exit";
+                        case "Identifier": return `${node.type}:exit (${node.name})`;
+                        case "Literal": return `${node.type}:exit (${node.value})`;
+                        default: return `${node.type}:exit`;
                     }
                 }).join("\\n");
             } else {
@@ -130,7 +130,7 @@ module.exports = {
             text += "\"];\n";
         }
 
-        text += arrows + "\n";
+        text += `${arrows}\n`;
         text += "}";
         debug("DOT", text);
     },
@@ -147,7 +147,7 @@ module.exports = {
         const stack = [[codePath.initialSegment, 0]];
         const done = traceMap || Object.create(null);
         let lastId = codePath.initialSegment.id;
-        let text = "initial->" + codePath.initialSegment.id;
+        let text = `initial->${codePath.initialSegment.id}`;
 
         while (stack.length > 0) {
             const item = stack.pop();
@@ -166,9 +166,9 @@ module.exports = {
             }
 
             if (lastId === segment.id) {
-                text += "->" + nextSegment.id;
+                text += `->${nextSegment.id}`;
             } else {
-                text += ";\n" + segment.id + "->" + nextSegment.id;
+                text += `;\n${segment.id}->${nextSegment.id}`;
             }
             lastId = nextSegment.id;
 
@@ -180,7 +180,7 @@ module.exports = {
             if (lastId === finalSegment.id) {
                 text += "->final";
             } else {
-                text += ";\n" + finalSegment.id + "->final";
+                text += `;\n${finalSegment.id}->final`;
             }
             lastId = null;
         });
@@ -189,11 +189,11 @@ module.exports = {
             if (lastId === finalSegment.id) {
                 text += "->thrown";
             } else {
-                text += ";\n" + finalSegment.id + "->thrown";
+                text += `;\n${finalSegment.id}->thrown`;
             }
             lastId = null;
         });
 
-        return text + ";";
+        return `${text};`;
     }
 };
diff --git a/tools/eslint/lib/code-path-analysis/fork-context.js b/tools/eslint/lib/code-path-analysis/fork-context.js
index f47249b998..6996af1dcc 100644
--- a/tools/eslint/lib/code-path-analysis/fork-context.js
+++ b/tools/eslint/lib/code-path-analysis/fork-context.js
@@ -187,7 +187,7 @@ ForkContext.prototype = {
      * @returns {void}
      */
     add(segments) {
-        assert(segments.length >= this.count, segments.length + " >= " + this.count);
+        assert(segments.length >= this.count, `${segments.length} >= ${this.count}`);
 
         this.segmentsList.push(mergeExtraSegments(this, segments));
     },
@@ -200,7 +200,7 @@ ForkContext.prototype = {
      * @returns {void}
      */
     replaceHead(segments) {
-        assert(segments.length >= this.count, segments.length + " >= " + this.count);
+        assert(segments.length >= this.count, `${segments.length} >= ${this.count}`);
 
         this.segmentsList.splice(-1, 1, mergeExtraSegments(this, segments));
     },