Give some love to the linter

lib/lint/rules/internal/asInternalCaseRule.js

@@ -0,0 +1,36 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const ts = require("typescript");
+const Lint = require("tslint");
+const tsutils_1 = require("tsutils");
+class Rule extends Lint.Rules.AbstractRule {
+    apply(sourceFile) {
+        return this.applyWithWalker(new CaseWalker(sourceFile, this.getOptions()));
+    }
+}
+Rule.NOT_BRACED = "Multi-line case clauses should be braced.";
+exports.Rule = Rule;
+class CaseWalker extends Lint.RuleWalker {
+    visitDefaultClause(node) {
+        this.checkDefaultOrCaseClause(node);
+        super.visitDefaultClause(node);
+    }
+    visitCaseClause(node) {
+        this.checkDefaultOrCaseClause(node);
+        super.visitCaseClause(node);
+    }
+    checkDefaultOrCaseClause(node) {
+        var count = node.statements.length;
+        if (count > 1) {
+            this.addFailureAtNode(node, Rule.NOT_BRACED);
+        }
+        else if (count == 1) {
+            let stmt = node.statements[0];
+            if (stmt.kind != ts.SyntaxKind.Block) {
+                if (!tsutils_1.isSameLine(node.getSourceFile(), node.getStart(), stmt.getStart())) {
+                    this.addFailureAtNode(node, Rule.NOT_BRACED);
+                }
+            }
+        }
+    }
+}

lib/lint/rules/internal/asInternalDiagnosticsRule.js

@@ -0,0 +1,23 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const ts = require("typescript");
+const Lint = require("tslint");
+const tsutils_1 = require("tsutils");
+class Rule extends Lint.Rules.AbstractRule {
+    apply(sourceFile) {
+        return this.applyWithWalker(new DiagnosticsWalker(sourceFile, this.getOptions()));
+    }
+}
+Rule.NOT_ON_SEPARATE_LINE = "Diagnostic message not on a separate line.";
+exports.Rule = Rule;
+class DiagnosticsWalker extends Lint.RuleWalker {
+    visitPropertyAccessExpression(node) {
+        if (node.expression.kind === ts.SyntaxKind.Identifier) {
+            if (node.expression.text == "DiagnosticCode" &&
+                tsutils_1.isSameLine(node.getSourceFile(), node.parent.getStart(), node.getStart())) {
+                this.addFailureAtNode(node, Rule.NOT_ON_SEPARATE_LINE);
+            }
+        }
+        super.visitPropertyAccessExpression(node);
+    }
+}